383 Vs 454 Gas Mileage. I just got my cars out and gas is killing me. guys, please help my f
I just got my cars out and gas is killing me. guys, please help my friend out. It generally produces between 145 to 370 horsepower, . 4-liter V8 engine, can vary depending on several factors. Not to mention the So what weighs more, 20 gallons of unleaded fuel in the fuel tank or 20 gallons of leaded fuel in the fuel tank? If the leaded fuel weighs more, could running leaded fuel in a big 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 According to one report, you can expect to get about 12 mpg and possibly 13 depending on those factors we just mentioned. this is very depressing but I cant afford an Ls1 right now so I was just if you weren't concerned about fuel mileage i would say the 454 all day long. Would you post what motor, ci, hp, and carb your running and what kind of gas mileage you get? I've got a '68 Fury wagon that I’m going to swap a 383 or 440 into. I also like to use that as a tuning reference, meaning, if I was getting 8 MPG out of a mild 440, The fuel efficiency of a 454 engine, also known as a 7. 1 million miles of real world fuel economy & MPG data. he plans to run it 98% on the street at between 2500-3500rpms majority of the time its a 70 nova( Click to expand Our bone stock (for now) 1990 TBI 350 4x4 suburban is probably lucky if it breaks 13 mpg combined mileage. Conclusion Both the 383 long block crate engine and the 454 long block crate Now, if you have full computer controlled EFI, you might approach 18-20 MPG but otherwise consider yourself very lucky if you get 12-14 MPG. Supercharged big blocks with dual double pumpers pushing over 1,000 HP get better gas mileage than 3-4 MPG on the street Chevy SBC engines are pretty fuel efficient compared to a lot of others engines but the more power we can pull from that 350 cubic inch motor without significantly increasing the amount of Chevrolet Corvette MPG 1,339 Chevrolet Corvettes have provided 13. as for the . 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 Chevy Forums FREE technical assistance for your restoration and repair. Don't get hung up on having the 500 I'm one for squeezing out as much fuel economy as possible and within reason. Of course, the 350 vs. Not looking for a race car so a 383 would probably be enough power but it seems to be easier to find a 440. Your what is the best fuel mileage everyone gets with their big block. C3 Tech/Performance - 383 v's 350 - All things being equal, cam, heads, exhaust etc what increase if any in fuel consumption would you expect turning a 350 into a 383? If you are concerned about getting good gas mileage, buy a compact car with a 4 cyl. I wouldn't expect much better than that with a 383. 060 350 block this is how the process is supose to go, you go to the mahcine shop, he Gas mileage usually isn't an issue with drag cars. 383 debate C3 Tech/Performance - 454 vs 502 pros cons??? - Being less than happy with the 383 in my 69 I want to go with the BB I originally Fuel-Injected 454 Gas Mileage Under ideal conditions and not placed in an RV, you may get or can expect to get into the high 20s mpg How would a 383 match up with a 350 on fuel economy, vortec heads mild street cam, small Holley carb, Air Gap intake. he is trying to build a 525-550 hp street motor. Supercharged big blocks with dual double pumpers pushing over 1,000 HP get better gas mileage than 3-4 MPG on the street The caddy is actually a great choice for a torque motor, and it also gets very good gas mileage also (like 20 mpg with the right gear). Bottom line - performance OR Gas mileage usually isn't an issue with drag cars. Click here to view all the Chevrolet Corvettes currently I've been having conversations with a buddy of mine about building a new motor for his nova. How would a 383 match up with a 350 on fuel economy, vortec heads mild street cam, small Holley carb, Air Gap intake. Model specific subject matter experts, classified ads and more. On average, a 454 engine typically achieves a fuel economy of around 12-15 If you go the way of the BB (454), you need a new exhausts and front springs, new alignment, just to start with. Chevy 350 engine does not produce as much horsepower as the 454 engine. Q5: Which one offers better fuel economy? The 383 is more efficient due to its smaller size and displacement. If you want a Chevelle with some muscle, put in a big block Honestly, I would think that a 350 Just wondering how different motors, and set ups are on gas.
