tcr

Not w/ an o-ringed head. I'm probably good to 70-80psi I would hope. I am getting out of my turbo's efficiency range though.

tcr

Not w/ an o-ringed head. I'm probably good to 70-80psi I would hope. I am getting out of my turbo's efficiency range though.

tcr

Not w/ an o-ringed head. I'm probably good to 70-80psi I would hope. I am getting out of my turbo's efficiency range though.

tcr

Not w/ an o-ringed head. I'm probably good to 70-80psi I would hope. I am getting out of my turbo's efficiency range though.

tcr

Not w/ an o-ringed head. I'm probably good to 70-80psi I would hope. I am getting out of my turbo's efficiency range though.

jrussell

I think 60psi is already way of that turbo's efficiency range. I thought HTT said they were only good up to 45psi or so?

FWIW, mine hits 50-55psi all the time on the stock head bolts. It hit 64psi one time in really cold weather. I really need to get those studs installed soon.

BossHogg

How do you go about O-ringing a head? Also what other benefits will you see?

Jason A

[QUOTE=tatkins85;2090764]there only 350.QUOTE]

$350 you say? Do tell, what kind and where?

Lowest I can find are ARP for $430