81cuttysupreme

i'm trying to get my parts list together for a 7-8 psi procharger build. i'd like to get some input on heads. i like the stage 2 livernois heads, purely based on price and flow numbers, i think they have stock combustion chambers. i've seen alot of people reccomend 317 heads. i'm planning on putting in forged pistons and rods, so do i still want to lower the compression with 317 heads or should i lower the compression with the pistons and run a different head? or should i just run the stock heads with dished pistons? as you can tell from the myriad of questions, i need some guidance.

the starting point is a 99' LS1 and A4.

kikass_z28

l92 heads are a good stock head to run as well

BigRich954RR

iTrader: (1)

Trickflow as cast good power and alot stronger then stock price not to bad

kdavis

iTrader: (14)

no the deck is not as thick as the 317s. people have been cracking them at 700-750 hp

TurboAv

iTrader: (6)

I don't like the "AS CAST" Trickflow heads because you HAVE to get roller rockers. There is nothing wrong with factory rockers. Especially with the Harland Sharp upgrade or Comp Cams upgrade kit. So if you add the price of roller rockers to the as cast price you may as well buy CNC'd AFR's or ETP's that don't need roller rockers. Just my opinion though. I'm using ported stock 243's on my build.

BigRich954RR

iTrader: (1)

All after market heads with bronze valve guide should run roller rockers.

Just cause something can be done doesnt make it a good idea. I have friends running stock rockers on TFS too

81cuttysupreme

ok, so are the livernois stage 2 decent for a boosted setup? sorry if i'm not reading between the lines i'm new to LSX and boost.

BigRich954RR

iTrader: (1)

Yes there pretty good. But if you dont have a set yet there alot better for a little more. Trickflow will be like 200 more and have alot stronger design so later on when you up the boost you can still use the same heads

81cuttysupreme

ok,thanks big, that's the input i was looking for. i think that's what the others were trying to say, just didnt quite say it.

88ls1blazer

iTrader: (1)

where are you finding trickflow heads for 1600??? the Livernois stage 2 head is 1399 for an LS1 engine.

BigRich954RR

iTrader: (1)

website that carry trickflow as cast on sale other wise it like 99 more

01ramair500hp

I have a set of All pro heads. they are pimp