Jax326

im looking for an 800 to 1k whp goal on my new twin turbo build. i see alot of guys using ls9 gaskets. do they really work to keep from pushing water vs having the block and heads o-ringed?

The Fugitive

iTrader: (6)

I'm one to always plan ahead because once you get used to that power you are going to be upping the boost. Mine is getting 1/2" ARP studs with the MLS gaskets so I will be checking that route out but the next block is getting oringed and a superdeck (overkill I know I like being safe) so I can run the car over 1K to the wheels. The car should be done here within the next couple of weeks so I will be able to give you more info.

cjg454ss

iTrader: (27)

i run an oringed block with mls ls9 gaskets, worked great up to 20psi on l92s. made alot of power, but in the end im switching to the gmmp ls3 6 bolt heads, You need the thicker deck around 900rwhp or so. unless you want to detune the car. the stock stud size isnt the problem, its the thin deck.

speedfreak391

iTrader: (2)

I have heard the same things about the deck thickness. I have a friend that killed a set of heads this way on a GTO with twins.

adam205348

iTrader: (2)

If going with a 6-bolt head and block with a thicker deck at what level is O-ringing needed? 1500hp+ 1800hp+?

Jax326

thanks for the input. im trying not to switch to aftermarket heads for the thicker deck as they are a budget killer