Mike TexaSS

iTrader: (2)

How much more RWHP are LS6 heads worth over LS1 Heads? Assuming you had simular port work done to both and the same valves and valve job?


I.E My Car made 455 RWHP with Stg 2 LS1 heads with 2.02 1.60 valves the heads flowed 305 @ .600 lift on the intake and 227 @ .600 on the exhaust.

Now the bolt on LS6 heads that would flow more CFM's how muh RWHP is it worth?

Im trying to justify the cost of some new LS6 heads over some used stock LS1's.

99 Black Bird T/A

iTrader: (4)

Ported LS6 vs Ported LS1 on stock cubes, all things being equal, I'd guess 5-8rwhp.

On bigger engines the difference would be more IMO

Mike TexaSS

iTrader: (2)

This is on a X1 Cammed 382 Lunati stroker.

Jabroni

All things being equal, 10-15 RWHP, I think, is a realistic gain going to the LS6's.