Bradlyj8Z28

iTrader: (4)

I have a 6.0 in my 2004 Denali. It has 317 heads on it. I am doing a head and Cam swap on my 2002 Camaro LS1 engine. I know the 241's that are coming off the LS1 would give the Denali a small compression bump but would that be all? Do the 241s flow better? Would it even do any good to swap the heads?

bww3588

iTrader: (49)

No, what you gain in compression would be lost in flow. The 317's have the same ports as the ls6 heads. Also the larger chambers of the 317's provide a little more flow as the valves are less shrouded.

If you want to have the 241's ported, you would gain a decent amount. If that is a route your willing to persue, may as well throw an ls6 cam in there too. That would wake the old suburban up quite a bit.

mark21742

Look up AI's high compression 241 program....they make pretty good numbers

96capricemgr

iTrader: (1)

but if you are going to send them a set of heads to CNC why not the 317s?

Sales4@Texas-Speed

iTrader: (4)

I would try and find some 243s if possible. I know they are a little more expensive but they don't give up any flow to the 317s while picking up notable compression. The 241s actually flow worse then the 317s.

Bradlyj8Z28

iTrader: (4)

Thanks for the response. I guess I'll freshen it up at 100k and do ported 243 and an LS6 Cam.