icanfixall
Official GMM hand model
I see some vasalating going on still... This is what my stock 89 motor did. I installed a Banks Sidewinder wqstegated turbo at around 89,000 miles. Then I towed heavy with boost at 9 lbs so... That wasn't good enough so I upped the boost so I could use 12 lbs all day long. That motor cavitated around 150,000 miles so it was sleeved on just that cylinder. The other head never came off for a gasket replacement even though I told the shop to do it. They didn't.... ******** anyway. So I finally run the motor into the ground because its drinking 6 gallons of water in the round trip to and from work of 32 miles. I parked it at 376,000 miles. When I pulled it down the oem head gasket was still working fine. Now thats saying something for the bolts and gasket. I ran it hard too. The stock head bolts tested to failure for me at a facility that does plenty of work for NASA at 135,000 psi. They really have plenty of holding power but... I want more so I have the ARP studs at 220,000 psi instaed of the 200,000 psi they sell to everyone. Now do you feel your stock head gaskets are going to fail with a turbo boosting around 10 lbs..... I don't think so Scooter.....