boost heads

does any one know how much boost a FFWD Connection Cylinder Head can hold. i'm lookin to push at least 15 pounds. if any one knowsw of any heads that will hold that much it would be much helpfull (the motor is a 4G63)
thank you

At 25psi I would get ARP hardware and a new head gasket. Below 30psi stock head is fine.

Stock head studs will easily hold 15 psi on just about any turbo.

Sounds like he is asking about the head itself. All DSM heads should be good for several hundred psi.

:)

yupp....love to see a turbo that does that tho....but holstet....dammmn.....40+psi.....

Holsets are nothing special, though I like the one on my cummins turbo diesel. There are many DSmers running large "regular" turbos (garrets) that have to use 50 psi blower guages ;)