There has been lots of discusions on headgaskets to lower compression. My question has to do with with a factory thickness headgasket that would not lower the compression.

Is anyone aware of a factory thickness gasket that will work with 89mm bore and ARP studs. Those of you running built engines, what are you running?

 

I believe Cometic makes an 89mm gasket in .030 thickness which is closest to stock. They even have a .027 thickness version. Not sure if they work with ARP headstuds though.

 

OEM HG here.

 

yes cometic does sell a 89 ml with 030 thickness thats what im running on my car and i also have the arp studs you are good to go
but whne you send out the block to be worked on give them your new head gasket your new piston and yoru new sleeves and they willmake everythign fit perfect thats what i did to mine i waited for all the parts and matched everythign perfect

 

I have the cometic 89mm as well!