383 Vs 454 Gas Mileage. In order to meet the criterion of 1. 42 or even 3. 9 8 4. The 38

In order to meet the criterion of 1. 42 or even 3. 9 8 4. The 383 will produce more at their current setup. Oct 15, 2021 · Chevy 454 vs 350: Fuel economy The 350 chevy engine has 38 miles per gallon gas mileage, indicating 75 pounds per hp hour specific fuel consumption. 08 3. 4500 - 4700 with engine, drive, fuel etc. 1 May 26, 2011 · Just wondering how different motors, and set ups are on gas. Jan 5, 2024 · Gas mileage usually isn't an issue with drag cars. Looking for honest 400 hp at the wheels through a Jun 26, 2010 · Originally Posted by 69427 Go with the 454. 3 with 5 speed in my 89 C1500 reg cab stepside. Jan 5, 2024 · Supercharged big blocks with dual double pumpers pushing over 1,000 HP get better gas mileage than 3-4 MPG on the street though. The 383 is a torque monster, and so is the 454 but not all the impressive on hp IMO. Without taking a side to the best engine, I'm curious on the fuel economy between 450 HP LS and a 450 HP BBC? Let's say we equipped the BBC with a Holley Snipper so both would be fuel injected, both operating Feb 16, 2012 · Re: Better overall motor:396 vs 454? Nothing offers more value than a 454. My buddy's blown 540 get 8-10 MPG. Aug 12, 2012 · It would be a different story if you already had the core for the 454, but I'd stick with your plan. had the same problems with 2 383's. 342 3. Without taking a side to the best engine, I'm curious on the fuel economy between 450 HP LS and a 450 HP BBC? Let's say we equipped the BBC with a Holley Snipper so both would be fuel injected, both operating Jun 29, 2009 · Any MPG numbers for both these trucks. 4 8 4. Sep 15, 2005 · I know, I know. Jul 25, 2024 · CorvetteForum - Chevrolet Corvette Forum Discussion C3 Corvettes, 1968 - 1982 C3 Tech/Performance C3 with 454 vs 383 Notices C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette Sponsored by: Aug 27, 2011 · If we were to compare 2 similar chevelles, one with a 350 sbc and the other with a 454 bbc. The Combination of a larger bore and eight cylinders accounts for the poor gas millage Conclusion Jun 8, 2022 · There has been a lot of discussions on transplanting the LS engine in our Chevelles. 438 Chrysl 400 6. I've been planning the 383 for a while now and have accumulated some parts: a 4-bolt main, '90 350 for the block, rebuilt vortec heads, GM 4-barrel vortec intake and Mar 26, 2014 · When I installed a dual four barrel 383 intake using 2 400 cfm Carters with electric choke the gas mileage went up 2 mpg over the best 4 barrel setup. Mar 4, 2009 · 72 454, M22 been on the same tank of gas for two years, so good MPG. Jun 29, 2009 · Any MPG numbers for both these trucks. 5-12 on the highway cruising at 3200-3300 rpms. 438 Chrysl 392 6. It gets right around 10 mpg around town and 11. I wouldn't expect much better than that with a 383. 4K views 1 reply 2 participants last post by Torque454 Jan 13, 2010 B Jan 1, 2011 · How would a 383 match up with a 350 on fuel economy, vortec heads mild street cam, small Holley carb, Air Gap intake. the 383 has ezfast efi on it which, if i can figure out the bugs would put on the big block. Of course, the 350 vs. 75 3. Jun 8, 2022 · There has been a lot of discussions on transplanting the LS engine in our Chevelles. Nov 16, 2005 · If you go the way of the BB (454), you need a new exhausts and front springs, new alignment, just to start with. the car is really a sunday take By the chart that 454 looks like a truck engine! From these two I would pick 383. 5 diesel truck. 08's. Jul 4, 2013 · 454 tbi vs Vortec Jump to Latest 122K views 37 replies 22 participants last post by total newb Aug 31, 2023 Z Mfgr CID Liters # Cyl Bore Stroke Mfgr CID Liters # Cyl Bore Stroke Amc 304 5 8 3. Mar 31, 2001 · I had a guy who was running a 454 (the one that told me he was getting 14 MPG with a carberator on it) tell me the following; his buddy had a 383 stroker and claimed he had a LOT of reliability problems. 90 gears. Which would be betterA full roller 350 or a Hydraulic flat tappet 383? Obviously each has advantages over Jun 26, 2022 · So, with the way things have been looking the past several years, I’m starting to lean towards a C3500 454 4x4 truck for a future build, and slowly starting to dislike the idea of a duramax swap or even a stock 6. The 454 would out do the 383 even if it was just rebuilt with some May 26, 2013 · Notice that NOBODY used a larger than 7 liter engine in NASCAR. What's the best option for my situation? The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board Sep 6, 2004 · C3 Tech/Performance - 454 vs 383 - Have a 400 crank sitting in my garage. I've been planning the 383 for a while now and have accumulated some parts: a 4-bolt main, '90 350 for the block, rebuilt vortec heads, GM 4-barrel vortec intake and Jul 6, 2014 · I'm trying to decide between building a 383 with vortec heads vs swapping in a stock (relatively) 454 TBI from a donor truck.

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