billyflantos

iTrader: (6)

I have a 6.0 out of a 2002 truck with 317 alum heads i'm wanting to put a healthy cam and carb set up on it whats the diff. Between the 317 heads and 241 heads i already know cc's are diff. How much compression will the 241's give me are valve size the same and which one flows better its going to be more of a strip car than anything.......

the_merv

iTrader: (88)

The 317's flow better, they are the Truck version of the 243's.

billyflantos

iTrader: (6)

so what would the best thing to do have them milled down for compression and if so how much should they be cut....

holley505

iTrader: (1)

bring them to 64 to 62 cc that will give you about 10.75 to 11

billyflantos

iTrader: (6)

how much is a reasonable amount to cut off the heads,also i'm planning on putting in a .600 lift cam in it.

Zedzag

iTrader: (7)

I shaved .020 off my 317 heads and they work good with my .600 lift cam.