420gto

iTrader: (11)

So my head bolts are the "dimpled", hex bolts with 10.9 stamped on them, so are they the 134-3609 ARP bolts?

http://www.hinsonsupercars.com/p-478...it-ls1ls6.aspx

On the gaskets: should I get simple LS2 head replacement gaskets or is it worth it for the Cometic ones? These are going under the Livernois stg 2 243's that should be here today.

Poor planning on my part, I should've figured this out and ordered already. Now those lovely pieces of art have to wait for my dum **** to figure this out.

Thanks if advance.

tom's2005gto

iTrader: (3)

Can't help you on the bolts. Have the heads been milled? I'm a big fan of stock GM head gaskets, until you get to a certain power level, etc. I ran the stockers on my 402 with 11lbs of boost, made 625rwhp 630 torque. Hard to bet the GM gasket.

420gto

iTrader: (11)

Yea the decks were milled enough to ensure flatness. I am going to have them measured, cleaned, and flowed. Findout exactly what I'm working with. The Cometic are thicker, right? and re-useable?

tom's2005gto

iTrader: (3)

^^^^ you can get them in many different thickness. I changed over the cometic with the current 427 and 18lbs.

420gto

iTrader: (11)

But the GM ones work just the same right? If it's all the same I'll just save a few dollars. My new heads got here yesterday, I dropped off to be cleaned and flow tested.

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