Hawkeye

iTrader: (4)

I have a set of 99 5.7 LS1 heads that were ported by Absolute Speed (stage 2)....They made 407 hp/395tq with a thunder 224 cam/kooks . My Question is Im gonna be getting a 01 LS6 motor from a low milage vette in the next week or 2. What would be the HP/TQ difference if I put the 224 cam in the Stock head LS6 motor????

I'm hoping I can just slide the cam in the motor and install some valve springs and go....Or should I stick the AS heads on the LS6 block????

ls1wannabe

iTrader: (2)

i would say look to see some less power if you use the ls6 heads but you can always port them

silverTA2002

iTrader: (1)

Ported LS1 heads will flow WAY better than stock LS6 heads.

Ported LS6 heads could make 10-15hp more than the ported LS1 heads.

If I were you, I'd throw the LS1 ported heads on the LS6 block, and sell the LS6 heads.

SUX2BU

iTrader: (14)

i knew a guy that had GTP stage 2 heads i belive. never dynoed good. he swapped out for some stock LS6 heads and gained 10 rwhp.
Just cause they are ported doesn't mean it a good port job.

SS1875

iTrader: (34)

If, I were you, I would sell the LS1 heads and have the LS6 heads ported.

transam1998

iTrader: (5)

Same heads, my car dynos fine.

vettenuts

iTrader: (4)

Keep the LS1 heads. The 2001 Vette heads didn't have any of the advantages of the 2002 heads, i.e., lightweight valves, etc. I would re-use your current heads.