RE: Need opinions on rebuilding 440
is your car numbers matching?
what is already done to the car?
are you keeping the 6-pack setup?
i am not all that familiar with big block builds (especially six packs), but i do know that indy cylinder heads are "the name" in performance heads. once we eventually go to aluminum heads, we will almost surely go with indy for both of the 340s.
if the engine is currently stock, i would start with headers, cam, heads, and i would go away from the 6 pack, as the 4 bbl is easier to tune, and i also know more about the aftermarket for the 4bbl. if you are keeping the 6-pack, youll have to check around on things like performance intakes, carbs, etc. i know that indy makes great top end kits for big blocks, but im not sure about 6 packs.
to get from 390hp to your goal of 500-550, i dont think that a stroke change is needed. my 340 4bbl is making around 500hp with the stock stroke.
what transmission are you running, and is it stock?
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