How Many Miles Per Tank?

[bnoon]

Originally Posted by Firebirdjones

Alot of people keep telling me the 6.0's are gas hogs It's just a 364, they can be nearly as economical as the 5.3's with a good tune

Agreed. I've found that the largest part of fuel economy isn't engine size, but friction. Since the crank/rods/cam/etc are all common between the 5.3/5.7/6.0/6.2 the friction differences are between the set are minimal. Makes me want to build a large bore 1.88 rod light weight looooooooooooong rod SBC with a very short stroke and every friction trick I can think of just to see how much MPG I can get with "old school" SBC tech.

[Edahall]

Originally Posted by bnoon

Agreed. I've found that the largest part of fuel economy isn't engine size, but friction. Since the crank/rods/cam/etc are all common between the 5.3/5.7/6.0/6.2 the friction differences are between the set are minimal. Makes me want to build a large bore 1.88 rod light weight looooooooooooong rod SBC with a very short stroke and every friction trick I can think of just to see how much MPG I can get with "old school" SBC tech.

Yes engine friction is part of the equation but addressing friction from wind resistance will probably gain more than just about anything else.