Cometic Head Gaskets $139.99

[3400-95-Modified]

OEM GM graphite. At least to my knowledge...

FelPro does have some HD version out there, but I cant speak for their reliability... and I do not know if they fit a 3500. BUT in the end a 3400 head gasket should fit a 3500 fine since the 3500 MLS ones had a slightly smaller bore than a OEM GM 3400 gasket. IIRC Eric Brennan is using a set of GM 3400 graphite's on his 3500 motor.

[boscov6]

OEM GM graphite. At least to my knowledge...

FelPro does have some HD version out there, but I cant speak for their reliability... and I do not know if they fit a 3500. BUT in the end a 3400 head gasket should fit a 3500 fine since the 3500 MLS ones had a slightly smaller bore than a OEM GM 3400 gasket. IIRC Eric Brennan is using a set of GM 3400 graphite's on his 3500 motor.

My motor is a bored 0.030 3400 with a 3500 top so I really need 3500 gaskets that will take boost at 10 pounds. I think you are helping me with the stud issue as well. I have spent a shit load on the bottom and I really dont want the top to take a ride either. Whats your opinion on this gasket choice?

[SappySE107]

Please start a new thread.