Johnsz

iTrader: (7)

I traded my nitrous kit that I had for some prc stage 3 ls6 heads. on TSP website it says that the heads are for big cubic inch combos but all I have is a stock ls1. I sent a pm to Jon at tsp and he told me that the biggest cam that I could probably run would be a 228R without piston modification, so my question is should I keep these heads or should I sell them or trade them for some stage 1.5 or 2.5. also will this combo be close to 400hp?

thanks in advance

PBMFIsMe

iTrader: (5)

The great thing about good heads is that you don't need a huge cam to make good power.

If you have an M6 car, 420+ with those heads and a 228R is probably really close to what you would be seeing, provided you have the supporting intake and exhaust mods.

an A4 would be more like 390-400, with the same supporting mods.

I say go for it. You should be pleased with the results.

99blancoSS

iTrader: (115)

Not that they are a bad head its just it isnt good choice for a 346 cid street car. It could be a little sluggish off the line. If you had a chance to trade for equal value you would be better served with stage 2.5 5.3's or stage 1 or 2 ls6 heads.

Johnsz

iTrader: (7)

sorry forgot to mention that the car is a 2000 SS m6 with 53k miles and i will have all the mods to support these heads as far as 90/90 or 92/92 combo, and I have a borla exhaust on it. Do you think ill have a problem with ptv with that 228R? The vehicle only gets driven on the weekends only because i have a company truck for my daily driver so it stays in my garage all the rest of the time