memphisTa

iTrader: (2)

Generally speaking...at what psi do these heads begin lifting from the blocks? Are they all four bolts per cylinder?

Is the LSX block the only one that can handle 2o+ psi w/o pushing water?

NA$TY-TA

iTrader: (21)

With fresh head gaskets I start to push a lil water around 22 psi. With agressive timing and 20 psi. Push a lil after the gaskets have been on there a while.

Read the ohio boys thread in this section and theres some good info in there.

Kyle

memphisTa

iTrader: (2)

thanks kyle. Are you running a 370?

NA$TY-TA

iTrader: (21)

I was running a 370..... A few more cubes with the new motor

Pro Stock John

iTrader: (34)

I'm running an LS6 block + Allpro heads, I'm on my second set of head gaskets for this shortblock for the last 3 years. I have not made a ton of passes but it's never gotten jacked up.