4.3 V6 too small for good mpg?

[Firebirdjones]

Originally Posted by slotard

, never would've expected a TH400 in a 1/2 ton,

My 77 long bed was a 1/2 ton with a 400 turbo, and a factory 454 in front of it. In those years you could order the big blocks in the half tons, and that triggered a 400 turbo if you wanted an automatic.