383 efi mpg. My brother has a tweaked Quadrajet on a 400-450hp 383.

383 efi mpg The LS will. 00 I get the best EFI out there. He's willing to give up some torque for another 3-4 MPG. I recently saw some dual turboed 383s on youtube. Please Mileage wise your realistically talking about 3-5 mpg. 3:1 compression i have a victor jr and a performer rpm intake 4779 750 DP still up in the air whether to keep my DART 200cc iron heads or if i want to buy set of DART 215 cc pro 1's TH350/ 3500 10" stall 4. Save Share Yes, if having trouble coping with the simple CCC system, EFI will have you tearing your hair out and there is no reason to expect this type TBI EFI to give much noticeable improvement in HP, torque, or MPG that mainly comes from how the engine long block is built and a proper long runner EFI intake setup and this system doesn't Big Torque and EFI Convenience in a Complete Kit. 5:1 383 and had it dyno'd this afternoon. despite changing out the stock engine for a pretty healthy 383 at the same time. 5exh roller lifters. 52 compcams roller tip rockers compcams 206/212 adv. * 1959 Impala __ 2dr coupe - 383 Stroker-TH400 * 1955 Belair __ 2dr coupe - 283 alum. Has anyone put EFI on Vortec heads since they have different bolt pattern for the intake? We're currently using a Q-Jet on an aluminum Edelbrock dual-plane Performer intake and measured 24MPG's (when I keep my foot out of the carb) on the hiway. D EFI Turnkey Long Block Crate Engines and get Free Shipping on Orders Over $109 at Summit Racing! Chevrolet Performance SP383 c. I would think you should be getting at least 10 with your setup. 383's are not known for gas mileage that have carbs. I recently put the Holley EFI TBI system on my 383 making 440 HP. 470" forged steel crankshaft & H-beam rods, Wiseco 4. 95; EFI - $10,495. have the Toth heads done to a stage 2 to be able to swap to the 440 if and when I ever get that built and add that new EFI system that was talked about in the forums. i wouldn't expect gas mileage to be that great. Did ok for about 2 years, Then the milage went down hill. Milage on interstate 20 MPG, Witn NO A/C. I'm getting an average of 9/10 I think you would need more than just the sniper to really get a big boost in mpg like run a t56 and put some freeway friendly gears in the rear. Make sure your timing is correct and then adjust the I get a pretty consistent 19 to 21 mpg. The LS would of course be more efficient so maybe 3-5 MPG improved on the highway. Tires, rims, rear end, brakes, suspension, torque converter, and 383 stroker done. 73 gear questions. tweaked with shorty Like I mentioned on a similar post yesterday, were it not for the 2K+ cost of the aftermarket TPI system, I'd love to drop an Edelbrock EFI onto one of my rat motors (perhaps comparable to your 383 in torque and HP) just to enjoy the feeling of that instant power/torque that EFI usually delivers. Here's the plan so far: 383 Stroker; 9:1 compression: This sucker's going to run on 87 octane and like it. Guys talk about better gas mileage with these 383,but what exactly does that mean??. 050 duration compared to max lift number could be called overall Product: EG 383 SBC Crate Engines . I will say that long ago, I had a 383 4bbl Challenger RT, 4 speed with 3. 383 miles / 617 km: Fuel Tank Capacity : 13. They have the same tranny, rear end ratio and same size tire. My mildly modified setup: 383 stroker/votec heads/mild lunato vodoo cam/MSD Ignition/heman headsers/3. 73's to 2. A 383 has a much stronger pull on the intake stroke than just the cubic increase tells you, because of the increase being just the stroke. Jump to Latest 3. I want a compromise between tame profile but on the edge of what EFI can manage with a wide-band O2 sensor's. d EFI turnkey long block crate engines offer the strong pull of the proven 383 "stroker" combination and the contemporary convenience of electronic fuel injection, delivered with most of the engine 385cid (. Starting with a new, non-remanufactured cast-iron block, the SP383 features a high-performance roller camshaft and lightweight CNC-machined aluminum "Fast-Burn" cylinder heads utilizing aluminum 1973 PLYMOUTH DUSTER 383 EFI. Fired right up and with a bit of tuning (just a needle and spring swap) made 535 hp and 500 tq. We made our 383 and LS look and perform exactly the way we wanted them to. 52 rockers lift 112 lsa 9. SFI's being a better choice. I've actually wiped proms for days , HAVE a My 318 mpg stinks, and it's worn out, so I figured I might as well have some power with my sorry mpg and rebuild the 440 and put it in. 73 10 bolt/electric fuel pump Holley Sniper Efi. 10 gears, even with 33" tires. Both have plenty of power which is well in excess of what it takes to cruise the vehicles at any speed. 50 6th gear 3. It's a lot easier than it used to be. WATER PUMP AND HOUSING, MELLING HI - VOLUME OIL PUMP WITH 440 SOURCE OIL PAN AND WINDAGE TRAY. I have accepted the fact that the system will not increase the efficiency much unless we do some extensive mods. The most impressive thing is how nice it runs and pulls at low revs and/or low load, given it's on an engine with enough cam 383/700R4/3. 2 block, Eagle 3. 9 gallons 45 L 9. 040 over 383) 10. Run the numbers and I'll never live/drive long enough for a slight increase in MPG for the $2200 - $2995 retail cost to ever pay out. 10's with drag radials (29x10 slicks when i run it) howards 1. General engine tech -- Drag Racing to Circle Track. However, there are lots of varying aspects when you check under the hood. Reactions: Scalpelarms. 6:1 350" may get 10 MPG a 383" built with 2 eyebrow flattop pistons, FastBurnHeads, 11:1, good quench, and mild cam may get 25-30MPG the details of the build are far You have to have EFI with closed loop control(O2 sensor) to get high mileage numbers. Not bad for a big 65 Fury (C body). The rear is an 8. I've have a 11k 383 forged everything fuel injected SBC. 302) should get better mileage. (If you have not done so already, be sure you have an 383 Stroker Engine with LS3 Power. What kind of oil do you guys prefer. Fast forward to 1989 c1500 4. 94 gear from 3. EZ EFI Have found Feb011 "Chevy High Performance" magazine did an install of EZ EFI on a 383 very similar to mine and ended up at 470 TQ 475 hp. supperb cold start in any sealevel. jack vines. You will maximize your mileage as well. I researched Mopar V8 MPG through the years. Joined Jul 21, 2020 Messages 84 Reaction score 43 Location I would mount a fuel filter before the fuel pump and topside before the EFI unit, that should be in the instructions. The system is self-learning and provides the additional efficiency of tuned port EFI. Edelbrock with it's Pro-flow system is there again A modern take on the legendary 383 small-block ‘stroker,’ it provides all the comfort of a modern-day electronic fuel injection system (EFI) with the classic compact design and toughness this Line 1- Upper Right Hand Corner 6- Found on Baltimore trim tags. For gas mileage and below 4,000 rpm a 600 is great. I like the looks of dual quads and performance but want to get the cleaner burn of fuel injection. I've heard good and bad things about the edlebrock and the holley commander systems, but The SP383 EFI engine includes an oil pan part number 12557558 This is a right-hand dipstick oil pan and gasket. Food for thought '65 Chev El Camino, Pro-Flo 4 4150 MPFI SBC350/Maybe 400HP @ crank, 700R4 383 posts · my wife rides 2004 f6 efi and i ride 06 f7 carbed they run real consistant 13 1/2 to 14 mpg ,ther is usually about 1/10/ to 2/10 a a gallon difference when we fill up at our fiRst stop 60 miles from here hers takes 4 gallons mine takes 4. The tranny is a TKO-500 with the 3. hotrodco (1,044) 100%. 73 Posi FiTech GoEFI4 600 (Ocean City, MD) car show this weekend. PG. With A/C it drops 1-2 MPG. 6 T-GDI (2021) New Arrival!! Price Coming Soon. 00. my 383 with same heads has a comp extreme efi hyd roller in it . This crate I am new to the site and have a 69 Roadrunner with HP 383 bored 30 over and Mopar performance cam - Edelbrock Performer intake with Holley 750 4bbl. Just my 2 cents. Save Share SP383 EFI Deluxe Crate Engine. 10 watchers. small block GM style stroker crate engine - Deluxe Dressed longblock with EFI. Fuel mileage and crisp operation is the advantage. With just a (For a heavily modified 383 in a Satellite - big cam, gears, headers, 383 Torker manifold or better yet the Mopar M1, the 650 cfm Holley double-pumper or equivalent Proform, Quickfuel, etc. 1973 PLYMOUTH DUSTER 383 EFI. 495/. Will post my new mpg now that I have the Fitech installed. For me, all the efi conversion may help with is fuel mileage . Part Number: 45006 (Carb), 45016 (EFI) UPP Price: Carb - $9,495. 383 strokers are also easily customizable but most standard carburetors don’t cut it. 6int/ 1. 283, 305, 327, 350? I don't need a performance engine, just a daily driver that gets good gas The 327 gets no more than 1 mpg better than the 383. i was a die hard edelbrock guy till I wasted a couple grand on a pro Flo system, most of it is in the trash now. Vortec heads would also work well on this setup. EFI and an OD trans with tall rear gears is a given on a V8. 27 1st gear. installed on a 106 intake centerline. The SP383 EFI engine includes an oil pan part number 12557558 This is a right-hand dipstick oil pan and gasket. Big Block remote mount turbo set up and it works! 383 ci SBF Garrett GTX5518r turbo 383 R EFI STROKER CRATE ENGINE 543hp SBC A/C ROLLER TURN KEY 383 383 383 383 383. DSCF0029 by Patrick Brown , on Flickr As opposed to a magnum or late model hemi swap, could you build a stock bore and stroke 383 for efficiency that would get decent mileage and power, and be reliable for long Which will give me the best all around performance and mileage on a 383 built to spend most of it's time below 4,000 and with an absolute redline of 5,000 RPM, a Speed I'm sort of hoping to get 20+ mpg. You'll loose less sleep! 2. A dipstick for the lefthand Chevelle Mechanical. But if i was to pick a carb for that combo, 650cfm would be the biggest I would go, I like mechanical secondaries. 180 miles one way. Period. When I put Holley EFI on my '56 they didn't have the in-tank deal so yes, you did need to buy an EFI tank Each 383 stroker is unique while remaining similar, and so are Carburetor for 383 stroker. There are differences between every vehicle that uses a 383 stroker, but this is particularly the case of trucks versus cars. I do appreciate the drivability and somewhat better potential mileage of fuel injection however at this point going with a gear change is in the $100's verses a 383 EFI STROKER CRATE ENGINE 528hp TURNKEY PRO STREET CHEVY TH350 Trans 383 383. K. Make: Plymouth: Model: Duster: Type: Coupe: Year: 1973: Mileage: 8,000: Color: ALUM. But you don;t have to replace all yout stuff either. My brother has a tweaked Quadrajet on a 400-450hp 383. The self-learning worked well and is mostly complete. - - - Updated - - - What gears are you running now? It would be easier to try a lower (numerically) gear set before swapping engines. Very close to what Engine Dyno program said what mine should make. Fully rebuilt. 23 sure grip and averaged approx. Save Share Find DODGE 6. 2" w/ Yukon Posi 3. This engine pulls hard all the The engine is getting kind of tired and gets only 8-10 highway MPG. For the cost, the TBI EFI units (Sniper / Fi-Tech) are pretty good and alot easier to wire. Chevrolet Performance’s SP383 EFI Turn Key-kit offers the strong pull of the proven 383 “stroker” combination and the contemporary convenience of electronic fuel injection, delivered with most of the engine accessories required to get the engine running in your project vehicle! The most accurate Royal Enfield Bullet EFI MPG estimates based on real world results of 2 thousand miles driven in 1 Royal 1 Royal Enfield Bullet EFIs have provided 2 thousand miles of real world fuel economy & MPG data. 3 (2005) vs Opel Astra H Sedan Edition 1. 9L/10km - With a C950 tbi, 950-24S, it’s reduced to 1. If you go EFI get a programmable set up and be prepared for some tuning, ie: lap top in the passenger seat. Runs over 20 mpg routinely. 305 vs. 3 w/TURBO 400?!?! easy peasy This 1227747 is a dinosaur. If you do the math, Syns Our Chevy late model 383 LT1 engine build is at its end and we give you a quick recap of all the performance parts and upgrades we have given her to yield us tremendous power. data logging, nitro control, fan control, ac control, build in two step module. Only thing it doesn't control timing. Both work great. I increased the MPG on a 383 Challenger just by going to a 2. EFI fuel systems, or any of the other minutiae involved with LS engine swaps. Part Number: SNE-565-305. Includes 30 month / 50,000 warranty & BPE Dyno Promise. 612 lift with 1. The car was a stock '66 Newport Town Sedan 383, with a 1970 OEM Holley 2210 carb. 42 Gears Posi , Coys' 17" Wheels. So the leads me to EFI systems. A carb will make like 10 more hp properly tuned over EFI but the drivability of the EFI will be far superior I've been doing a lot of reading in the bowtie forum. I have two cars with the Fast EZ EFI system, one car with a tunnel ram and Dual Quad (406 sbc) set up and the other single set up (383 sbc). carb is the best - IMO and I agree with Shaun !) (And for Coupe32, go with the 650 cfm Double-Pumper for your 340/4-spd with 3. A quadrajet has a MPG advantage over a Holley(generally speaking) because of the small primaries. 502 lift 112 lsa, 110 ICL Edelbrock 3594 fuel pump Shorty Headers with 2. NOTE - I've found the following EFI tables to be the most significant areas for improving fuel economy: Target Air/Fuel Ratio Table (too rich in cruising area). Gas mileage is horrible. If you want EFI, I'd go LS. On the other hand, if you slap on a FITech or Sniper EFI and never spend any This Chevy 383 stroker package isn’t for the faint of heart! With an extremely aggressive exhaust note and a choppy/thundering idle, you are sure to get a rush and grab everyone’s attention. On highway driving speed limit gets 20 mpg. If it got 6 MPG, I would say the same thing, I drive it a few months, Then it sits in the garage. 1 L/100 km 35 MPG UK. Best yet, the entire system is as plug-and-play as bolting on an intake. Consider a Hey I have a 69 Camaro with a 383 Stroker. I went with AFR 180 Street heads, Comp Cams XR270HR, but with a 600 cfm Edelbrock 1406 and a Performer Air I pulled the EFI and swapped in 2 600 eddys. 2 qtr and I was thinkin I knew what I was doing. A little here and a little there is going to net you good performance and MPG. COME Racing intake manifolds Holden V8's cannot be fed better with air and fuel mixtures to enable maximum efficiency, power and 383 EFI Crate Engine CNC STROKER MOTOR 470-525hp A/C ROLLER chevy TURN KEY. These systems are reliant on the Sniper EFI Tuning & Tech. com. Vman . Very pleased with results. 493 ex with 1. 566" lift 218-224 duration on a 113 lobe center. Sales: 308-236-1010 | Support: 308-236-1050. Mileage: 5,525 Stock # 14838 Drivetrain Engine Size: 383 V8 Transmission Type: 3 Speed Automatic Chassis Body Body Color Original: 1370 Cleveland St. I do know that there is a big mpg difference between 55-60 mph and 65 mph. Maybe 12-15 with your foot out of it. Used a FAST self learning system It’s hard to beat the classic 383 “stroker” for Small-Block torque, but Chevrolet Performance engineers found a way by matching it with the driving convenience of electronic fuel injection. Advertised to make 435 hp, the SP383 saw those numbers and raised them by another 11 hp. It's all from inefficient, outdated designs. abel to run a catalytic converter. hotrodco (1,040) 100%. 383 with T-350 and 3. What about using a traditional intake with EFI big torque and efi convenience in a comprehensive kit Chevrolet Performance’s SP383 EFI Turn Key-kit offers the strong pull of the proven 383 “stroker” combination and the contemporary convenience of electronic fuel injection, delivered with most of the engine accessories required to get the engine running in your project vehicle! 396ci kit $3000. I. 0 EFi (1985) vs Hyundai Tucson 2021 1. What about using a traditional intake with EFI Well, I know people have been asking about the fuel economy of carb vs EFI, difficult to relate though it may be, and I wanted to share my experiences. 65 mph is not economical with 4. They had some dramas with the FCCs early on, but mine works perfect too. We have a 230 in my Mom's 63 C10 that we have talked about installing a Fitech. It should idle good in gear, with the A/C on, make good power, lots of torque, and still get decent mileage. 6 16v (2010) 383 posts · The only down side is the fuel mileage, even with the efi I wouldn't expect much more than 11 mpg. 15 was hwy driving at 3000rpms. 9 UK gallons: Yugo Yugo 65A EFi (1991) vs Suzuki Swift IV 1. 383 miles / 616 km: Fuel Tank Capacity : 11. 4 posts · Joined 2006 Add to quote; Only show this user #1 · Apr 24, 2006. Pause slideshow Play slideshow. 5" Y into single 3" flowmaster no cat This is a 1 ton 4 by 4 truck. ACES EFI Killshot EZ Tune EFI system is one of the most powerful 4-bbl TBI systems on the market! 650 hp ,4 sets of 100 lb/hr Injectors, designed for 4150 style flange manifolds, 5 Inch handheld tuner with GPS speedometer Features - Remote-mounted ECU to avoid dreaded heat-and-vibration - Integrated timing control & coil driver - Boost Compatible with 3-bar TMAP EFI is great and can deliver same as or possibly better mpg then a carb if the carb is well tuned. I get 20 MPG on the hiway and about 15MPG in town ( depending how I drive it ) You will want to get a tank with built in pump Tanks Inc has them. zero miles. '92 Ford Mustang GT: 385"/6. Our donor engine came '66 GT 2+2 Fastback: 289, Canfields, long tubes, Erson E210421 cam, Vic Jr. Engine. 42 gears, FiTech EFI. In my case the driveability is far better than even the well tuned carb I had and I got John Schaffer's super impressive 383ci LT1 really cranks out. Fuel distribution is not balanced whether carbed or EFI. 23 gears I was getting about 15 mpg on the highway. I also went as lean as the handheld would let me go on the AFR settings for un-boosted WOT. -lbs. 200" forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232°-244° duration . Save Share Give up all hope of decent MPG unless you go OD trans and EFI. 73. Skip to content. I currently have an automatic with a 440 and 3. Part #: BP38318CTFD. With EFI controlled ignition timing that too can get optimized easier and quicker. My truck is carbed. KING Discussion starter. 5 mpg. It does get great gas mileage and comes on real strong at WOT. 0 EFi Body, Model and Production details. 55 gears what you think fuel economy wise with this setup. Also any thoughts on the Holley Tunnel Ram EFI??? 67 Jeepster had about 9 MPG before and ended up with 17-19. It lubricates the internal parts to reduce friction and wear. This engine is Pulling out the blown 383 and 700r trans and having a 525 hp ls3 and a 4l70e trans put in. 485 in /. Loud pipes close trails! Current rides: 2002 ZR600 1998 ZL500 1997 SX700 Past rides: 1995 T-cat (soon to be asphalt racer) 1997 Z440 1999 ZR 600 It is not easy to stay cheap with EFI and have it "engine bay clean" like my current setup. Heres the question; What engine will get better gas mileage with a 700R4 in a 1968 to 1972 El Camino. 050 . 576"/. 2 gallons 50 L 11 UK gallons Austin Maestro MG 2. 623" lift 114° LSA H/R camshaft, My 72 Nova is almost done. ALUM. Overdrive is not some misnomer or mystical thing that people use to I'm looking for first-hand experiences and suggestions for an EFI unit-assembly. less ring wear from precise fuel control. The efi just keeps her running smoothly and starts up easily. 18 watchers. Okay so right now I'm running dual quads on my 383 stroker , but giving a lot of thought to switching to FITech dual quad efi . 727 REBUILT RESTORED AND MODIFIED WITH A TRANS GO FULL KIT Pro EFI: Its reliable too, changing tuning files in a second. Peak torque was a bit more than As noted by 1 wild R/T, call Fastman EFI for an intake like in the photo. 6:1 350" may get 10 MPG a 383" built with 2 eyebrow flattop pistons, FastBurnHeads, 11:1, good quench, and mild cam may get 25-30MPG the details of the build are far About 8 to 9 mpg with the Holley 650 Truck Avenger. For a "best scenario" mpg run, get out on level Interstate, traveling at a GPS-corrected speed (say, 60 mph) after topping tank to first click-off; run 30 miles out and 30 miles back to same station, same pump; fill same way. If you're interested in building a 383, search the Chevy forum for "stroker" and you'll hit some good info. May God's grace bless you in the Lord Jesus Christ. If you throw an engine that isn't pushing crazy HP, a modern tranny, and EFI, at a c/k you'll be closer to 20. I have to admit though, the first consideration was how it looked verses how it worked. No your 327 is not going to be a 383 but the 383 is not going to be able to match the 327 in what can be gained in MPG if you cover all the bases. A smaller bore/ longer stroke vs. Reply Goose5oh • Additional comment actions. I do understand what you are saying about fuel mileage with the 383 at 450/500 hp/tq, something has to be sacrificed to get that much. Moderator: Team. I would imagine the tanks themselves are as good as the stock tanks popular name brand tank vendors sell. 1 pretty close to the same Cat happy By itself, a 500 will get better gas mileage But I want to make sure for $2000. New (Other) $11,499. Noticed that the short term fuel adaptives kept climbing to the rich side, as far as they could, from I’ve got a dumb question FUEL ECONOMY 440 and holley terminator multi-port efi with timing control Possibly 493 stroker kit definitely aluminum heads T56 magnum wide ratio with . There has been testing done before, I think the final conclusion is that a carb, when properly tuned for a specific point, gets better power and efficiency. Thanks for the vote of confidence. Interior Red. I grew up messing with the efi stuff and carbs are a new to me. EFI intake - EFI transformation in progress Save Share Reply Quote Like If you're not after EFI, the 383 may be the easier and cheaper way to go. I usually average 12 mpg on a carb, primarily tuned for WOT. Social Media Pitch: The Edelbrock EG 383 SBC Engine is a 100% brand -new, fully assembled stroker performance engine built with the best quality parts from the block up, making up to 500horsepower with -turning head 29 MPG 8. For best mpg use a Q-jet or efi, mild cam (203 to 210 duration), and tall gears (2. 8s around town and highway. New (Other) i was suprised to get 15mpg i even checked my speed with my gps. Price: - Item location: Fort Myers, Florida, United States. Doug . I’m headed to the point of fueling and ignition and exhaust. tb efi isnt exactly faster but its more consistent then a carb will ever be . This will be an SBC 383 build going into a street rod style 56 Chevy Apache truck. Best way I have found to get better mileage is to have a 30+mpg car and then a 10mpg I know that mpg depends a lot on drive train and tires and what not but I was just wondering what you guys get with 5. Jump to Latest the dyno its a 66 nova with 700r4 with a 2800 to 3200 stall and 33 spline 324 gear 12 bolt the motor is a . 383 Stroker, Turbo 350, 3. If smaller CI's are more likely to yield higher MPG's, perhaps I should just build I just finished a 9. 7 mpg. This feature does not shut down your system, instead the ECU is designed to compensate if a sensor fails. The 250 is handicapped from the start because of it's intake and the head port design. Lots of torque. The SP383 EFI also features a high-performance roller camshaft and lightweight aluminum, and Find Chevrolet Performance SP383 C. 3L SBF, Dart SHP 8. Fuel mileage is debatable but overall the Holley seemed to picked up a couple MPG's over a carb. If you went with a 334 stroker using a 383 crank in a 305, it would help in the grunt department and still keep cubes down. Gen III/IV "LS" swap info TECH: LS motor to Early Auto Transmission Email or PM me your LS questions if you need help bo185@yahoo. CLASSIC SMALL-BLOCK STROKER WITH MODERN EFIIt’s hard to beat the classic 383 “stroker” for Small-Block torque, but Chevrolet Performance engineers found a way by matching it with the driving convenience of electronic fuel injection. Going to buy some heads, thinking of how to select the best mpg heads, also going to buy matching roller cam, lift and volumetric effiency. I kept advancing until I could tell the engine surged and back it off. BUT, the efi won't make better mpg. I can't say for certain yet what the highway mileage is. 5mpg so I decided to make the change. So I just picked up a 71 with a 383 stroker in it. 0 4340 forged rods Of course you will loose mileage for low end grunt. The 383 also won't make the kinda power the LS will sadly. Before you say build a 4 cylinder or V6 let's just say it has to be a SBC. Motor is a 454, aluminum heads, mild When the speed limit changed to 55mph, nationally, I was keeping tight figures of highway mpg, using % of throttle, rpm, air/fuel ratio, and such to figure each segment of my 290 mile trips home from college, circa 1973-4. 3 L/100 km 39 MPG UK. Highlights Fuel injected 383 cubic inch V8, FiTech 4barrel EFI. Gotta go modern. The 383 runs awesome but got 8. Certainly a EFI have a better spark curve and better fuel curve if tuned properly. Even going down in cubic inches with a small turbo in place of a large displacment v8 (454 to 3800) mileage tends to be about the same. 4 . The good news is that the 383 and the 350 are mostly similar so there are lots of interchangeable parts. 0 I got asked if building a 383 rather than just rebuilding the current 350 would kill a corvettes mileage, well having done that several times and having done it with both the earlier carb equipped c3 and later TPI corvettes plus several cross fire and efi custom configurations,I can say that theres a pattern,you can build the engine and get both decent mileage by taking The MAX-efi 500 System is programmed with a limp home mode. The other half of the tune is ignition timing. 95 . That is why I suggested a BBC earlier because it probably wouldn't be all that much worse on gas and the power potential is so much greater. Thread starter 74delta; Start date Sep 26, 2020; Sep 26, 2020 #1 74delta Member. Lots of variables as mentioned throughout the thread. I've seen videos of the Holley EFI system taking 10 seconds of cranking to start in cold weather after sitting for a couple days. 19433046 supersedes 19432113, 19420597. Opens in a new window or tab. The efi setups need digital sensors and you have I average around 8 MPG (I am a little lead footed). 55 gears. Be more mpg with EFI. The oil dipstick for the SP383 EFI engine is on the right-hand (passenger) side of the block. While a 305 gets passed over alot, they will do well in the mileage department. I had the same issue with a 383 pump gas motor in my 78 Malibu Wagon. solid roller choice for street 383 efi. I wanted the timing control, and only some of the Fi-Tech have timing control. As long as you keep the LSA around 112-114 and the duration in the 220ish 383 Stroker, TH350, 3. 14 around town & 17 average mpg on a trip to Florida and back driving around 70 mph where I could. There is an adjustment to get the secondaries open earlier, but I call it I agree with what scooterwrench said. 383 Stroker Engine. I've also tuned my Commander 950 900 cfm tbi on a 383 in a '66 with a 4-spd. Just waiting on a few parts and a TH350 rebuild. 00 396ci cast crank only $1200. Exterior Red. Because a 383 stroker is a modified Chevy 350 block, there is a wide variation under the hood. the last set up had holley tbi with fuel pressure turned up alittle. Good fuel economy is a direct result of the fine-tuning performed on the EFI system. I'm planning my next project and really want a mileage friendly engine. 1 compression victor jr heads and comp cam 230/240 cam with a holley stealth ram intake efi intake with dual 58 mm throttle body from what I have seen from this heads cam set Holley sniper efi on a 383. This is an older thread, you may not receive a response, and could be reviving an old thread. Home; Inventory Mileage 73,713. My lq9 cost me 4K. thanks. 11s, 3 speed tranny, and a 383 stroker just ain't gonna net great mileage lol. 6 rockers, and AFR 210 cylinder heads. . Complete with a TPiS MiniRam, 58mm throttle body, solid roller cam (242/242 @ . Small Block GM style drop in ready Engine - dressed longblock w/ EFI. Ignition Timing Table (not enough advance in cruising area & light acceleration area). what would you Community Message Forum Photo Gallery Event Calendar Book Reviews Bronco Wallpaper Bronco FAQ Link Back to CB! Buy / Sell For Sale / Wanted Vendor Forum. You'll have your efi and you'll get better mpg vs a BBC with efi and you'll be money ahead. Just for the sake of discussion, what factors would cause a performance-built 750 CFM Edelbrock 383" to get better mileage than a efi mpg improvemnet? Quote: Originally Posted by Metalhead140. If you have deep pockets go after the LS swap otherwise keep the 383 and go efi. 050 duration, a lower major intensity figure indicates faster opening and closing-typically called more aggressive lobe, the . I blew up my heavly rebuilt 355 and swaped in a 383 stroker with aluminum fast burn heads from GM, needed to purchase another intake and headers and flywheel. Power isn't the main goal. As a man who runs nothing but classic sbc power, I can fold and be willing to say "the old school performance doesn't make the kinda power an LS can" Performance and fuel economy is a trade off no matter if you have EFI or a carb but generally, EFI is better in town because it's more efficient. About 10-11 mpg around town with a QuadraJet. Save Share by over correction for lean tip in. HOT ROD Staff Writer Apr 01, 2014. This means, that if for any reason a sensor fails, that sensor will receive either a default value or a simulated value. PackardV8 wrote:Just to clarify, it would help to note if these truck builds are carb or EFI. Pulling fuel from the accel pump and dTPS Accel functions gave me real nice gas mileage, but the motor didn't make near as much power, and the bog was worse. It didn't really get good until the '09 and up Variable Valve Timing Hemis. Sponsored. 23's. Displacement Chase. BluePrint Engines 383 c. Aside from the extra $8-12,000 to install an LS once done the Look will forever be a Plus with the help of EFI Connection's 24x system, and an LS1 PCM commanding control over the Gen II, we could expect better driveability and possibly even better fuel mileage. Save Share Reply Quote Like. I wouldn't expect much better than that with a 383. Freight. 64cc Cylinder Heads, Should give me the desired compression ratio. 60 over 383 stroker 9. Just wondering about the possibility of putting EFI on our 9. Drivability was awesome, much better than the efi and got decent fuel economy on the highway. CLEAN, 4-SPEED, 383 EFI V8, FACTORY COLOR, CLEAN VETTE! When you think of investment-grade Corvettes, you probably think of the 427/435s, the split-window 770-738-7111. TRANS IS A H. A new Vortec headed 383 would likely consist of a 750 Edelbrock, Performer RPM intake and headers. They matched it with the driving convenience of electronic fuel injection. 3K views 12 replies 12 participants last post by daveseitz Apr 26, 2006. Not worried much about gas mileage. saved on filter costs, and got better mileage and engine protection with better cold weather starts too. I have looked at the Edelbrock Pro-Flo, Holley, etc. ok here's the deal 97 vortec efi 383 silverado 4l80e 1. I’m interested in installing EFI and looking for possible finding EFI It depends on the engine build/efficiency a poorly tuned 7. Stock 559C. Manufacturer Part Number. The LS ended up costing about $1400 more than the 383, but it made significantly more power. Hopefully I can tune in another couple mpg. It's still in my BluePrint Engines 383 c. A propper tune on the carb and maybe even port EFI. Usually, a Chevrolet Performance SP383 EFI Engine is an assembled, ready-to-run 383 stroker with the convenience of a multi-port fuel injection (MPFI) system. The 383 stroker is basically a Chevy 350 block that’s been modified. Based on other comments in this thread, I'm expecting to see an improvement on mpg. 3L/383 Mopar big block B Distributors Male/HEI Distributor Cap Style and get Free Shipping on Orders Over $109 at Summit Racing! Distributor, Sniper EFI, HyperSpark, HEI Cap, Hall Effect, Billet Housing, Polished, Ignition Module, Chrysler, Dodge, Plymouth, Big Block, B, Each. 727 REBUILT RESTORED AND MODIFIED WITH A This engine definitely exceeded our expectations—check out the numbers. When you step into this game it’s all about money, you get what you pay for (fitech) I hear good and bad about the sniper and edelbrock. 08. 383 2 Bolt 9. x L (Holley 750 VS) and a 4-speed manual = 15 mpg. Oil plays a crucial role in the performance of a 383 Stroker engine. You won't look back ! Forged Mike Lewis 383 rotating assembly AFR Eliminator 195's Lunati Voodoo 60122 roller cam Inglese 50mm 8 stack injection FAST XFI Street then when you get sick of it, throw the turbo on it and make 600-800 HP without breaking a sweat. LS 383 CHEVY Stroker 500-600HP COMPLETE CRATE ENGINE PRO-BUILT ALL FORGED LS3 ls. In addition to being way more efficient and conven Efi For 383. 91 gears and get around 10 mpg. D EFI Turnkey Long Block Crate Engines. The performance aftermarket has made it easy to do that with just about any engine out there, and every build is going to be different. 400 plus thousand miles on a 305" from 1978. Chevrolet Performance SP383 c. The If you want MPG and reliability with EFI, I still think the factory stuff is going to be better than any aftermarket, so long as you have a decent tune done (which is needed either way). Least I won't be making a car payment. a bigger bore/ shorter stroke of about the same displacement (ie. 73-3. 00 in stock including 355, 383, 396. I've found opinions from one side of the fence to the other. This is the baddest small block in our lineup and it’s loaded with premium, brand name “go fast” parts. 050" - . I still have to do minor tuning on cold running and I've got a 383 Stroker (10:1 with Dart heads) in my 66 with a properly tuned 650 Holley vacuum secondary carb and MSD Pro Billet ign system. Best mileage with EFI and a 5-speed w/ OD = 20. To achieve our goal of cold-start friendliness, fuel economy, and performance, a FiTech Go Port EFI was used. 383 STROKER CHEVY CRATE ENGINE A/C 520hp ROLLER TURN KEY PRO STREET 383 383 383. He's thinking of building a 383 with specs similar to the GM HT383, including a mild roller cam, Edelbrock E-Tec heads, and the Edelbrock Performer multi-point EFI system. Old trucks aren't that heavy. @ 4300 RPM FiTech Easy Street EFI system This new build (same yank 4. D. Holley 12-876 - Holley EFI Filter Regulator Holley Sniper 19-401 - Holley Sniper EFI Conversion Fuel Tanks Holley Sniper 565-300 - Holley Sniper EFI HyperSpark Distributor Holley 558-323 - Holley Terminator EFI C3 Corvette Custom Stingray with 383 Stroker, FiTech EFI, C6 seats, coil over suspension all around, C6 Z06 brakes, buckskin interior, lowered, side pipe exh Ok guy (and gals), let's say you want to build a SBC that gets good fuel mileage. Shop Now at the Guaranteed Lowest Price! $5 off $49 / $15 off $249 / $ It would be suitable to use synthetic motor oil after the second recommended oil change and mileage accumulation. Austin Maestro MG 2. In town numbers improved only 1MPG from 12 to 13 (didn't expect that) but highway went from 14 to 17. 40) with a 3 speed trans or a Importance Of Oil For A 383 Stroker Engine. @ 4300 RPM FiTech Easy Street EFI system is capable of up to 600 hp and is self learning so no lap top or tuning is required When I had a 383 4 bbl (Holley 600), automatic and 3. It's probably capable of 16+ with more tuning, but won't do much better without an OD trans. A dipstick for the lefthand download the Comp Cams lobe profile catalog and look at page 71, the "MI" on the left stands for major intensity which is the difference between advertised duration and . It came factory with TBI injection. 30 month / 50,000 warranty & Dyno Part #: BP38318CTF1D. Kit includes a BluePrint 383 SBC engine, FiTech 30005 Easy Street EFI, HEI distributor, and Moroso spark plug wires BluePrint 383 roller cam engine has 430 hp @ 5200 RPM and 450 ft. Okay guys, I've been doing some searching on engines as far as gas mileage. I never tuned efi before either of these. Hot Rod Company 360_979_6966 (1044) 100% positive; Mileage. Chevrolet Performance SP383 C. The Fi-Tech came to market a year or two before the Sniper and I have the Go-EFI 8 1200 PA unit. Buy It Now. . The SP383 EFI also features a high-performance Building a 383 I haven't decided yet. Save Share Well sure the EFI was better, you were using a 9380 Holley, those are not the greatest out of the box and like my 1000hp that took a few weeks to get right but now the new owner is super impressed with it. Our bone stock (for now) 1990 TBI 350 4x4 suburban is probably lucky if it breaks 13 mpg combined mileage. I prefer EFI w/electronic spark control over carb setup due to the finer control of the fueling and timing and ability to dial it in across 383 efi questions . How much was the EFI and how much came from dropping highway revs 1000 rpm? Dunno. 32 posts Previous; 1; 2; 3; Next; new engine builder Expert Posts: 682 Joined: Tue Sep 23, 2008 12:14 am Location: Post by My 468 spins at 1950 RPMs at 73 MPH. i. 0 EFi (1985) vs Volvo S90 2016 T8 AWD Twin Engine Hybrid (2016) Austin Maestro MG 2. I can also burn 1/4 tank in a half hour fooling around. This is believed to be the body jig or 'gate' number the body was initially assembled on and used only for internal quality control. 8-1 compression forged pistons 6. I’m running a 383 with a true sequential multi port injection set up. Jimmy 1969 SS Camaro, 383 Stroker, Hooker Super Comps, Flowmaster Delta Flow mufflers,4-Speed, 3. 0s and 5. That thing is making some power though we seen that. the truck doesent have enough power to climb the hills without slowing down so i will probibly be at 10 mpg with my 383 Car makes about 450 hp and knocked down a best of 22. INTAKE TOPPED OFF WITH FAST EFI. Click here to view all the Royal Enfield Bullet EFIs currently participating in our fuel tracking program. I see both old school small blocks and LS with similar mileage. The longer stroke BluePrint Engines 383 c. incl. 383 V8, Fast EFI, Factory A/C Car! PJ's Auto World is pleased to offer this 1969 Chevrolet Nova Pro Touring Styled Restomod for Sale. 1956 210 del rey sedan 383 700r4 12 bolt posi. I'm looking for first-hand experiences and suggestions for an EFI unit-assembly. It’s hard to beat the classic 383 “stroker” for Small-Block torque, but Chevy Performance engineers found a way. However, the gas pedal feels like an on/off switch with granny power for the 1st half of the pedal and then instant superman when the secondaries open. New (Other) The red squarebody is finally back on the ground, Holley sniper efi working, 700r4 installed and working, shifter and seats installed , fuel system ran and a dacn65: Depending on the engine, you should be able to advance at cruise (2500+ rpm) to between 40 and 50 degrees. My thoughts are, FIRST for me ,,Its a summertime fun car/cruiser. Pleased with the purchase Spectra Premium EFI fuel tanks with in-tank pump are actually as inexpensive as the surge tanks. That was driving around 70 or so, not being careful. 383 vs LS swap Get the Best Performance with Chevrolet Performance SP383 EFI Turn-Key 383 ci/450HP Crate Engine 19433046 parts at JEGS. Does Not Apply. There will be all kinds of room for just about any kind-style of EFI system. 383 efi cam selection. Employing the timing in EFI is certainly a big advantage of the system, but takes some work. 5:1 383 with Vortec heads. I had planned on It depends on the engine build/efficiency a poorly tuned 7. 5 Compression Patriot 190 cc Aluminum Heads, 62cc 218/224 @. 12 mpg vs 14 mpg??. 383CI Stroker Crate Engine Small Block GM Style Longblock Aluminum Heads Roller Cam Drop In Ready 1956 210 del rey sedan 383 700r4 12 bolt posi. Car makes about 420 hp and gets around 15 mpg. The SP383 EFI engine assembly includes an oil filter adapter and oil filter element (AC # 25324052 or PF454). Yugo Yugo 65A EFi Body, Model and Production details. d EFI turnkey long block crate engines offer the strong pull of the proven 383 "stroker" combination and the contemporary I am currently planning a 383 build to swap into my third gen. MPG relevant factors you didn't mention are the Run the 383. It made 400 rwhp. The engine is a BluePrint full Roller 383 430hp, coil in cap dist, Edelbrock dual plane EPS, with electric - On the highway my carb engine (383/440hp/holley4150) used 1. 55mph segments came out to be right at 20 EFI isn't always about fuel mileage but reliability seems like Dave but your still in the tuning stage with it. 2015; 63. Clearwater FL, 33755. Starting with a SBC-derived block, this 383 Stroker engine gets a modern Multi-Port Fuel Injection system. Im looking into a EFI system for my new engine. - Super Chevy Magazine 32 MPG 7. There is this video and I think they did an MPG comparison if I remember correctly. 3) BJLH w/16197427 tweaked that was fantastic for my exact same TBI Vortechs, 204/214 too many mods BEFORE the 383 that got 19mpgs and 13. Different types of oils are suitable for a 383 Stroker engine, such as synthetic, conventional and high mileage oils. Vacuum secondaries. Anytime I have added power to something my foot tends to get heavier. I have seen some well maintained LS engines with 300,000+ miles. Milage in the city, Dont know, Dont care. New (Other) $8,999. Running 4. kjwqfp mmubsp qpbbo msjs fuf tvxba essqd vris jqjfyd yvizfn