I have talked to Scheid diesel about there MLS headgasket for the 12valves. Now my question is why would they recommend using the 14mm studs over the 12mm studs? When I asked them they really couldnt give me an answer.
I know that the 24valve guys are running the Cometic MLS gaskets with only the 12mm studs and arent having problems.
I have read on here that the 14mm studs can warp the block.

What does everyone on here think? I feel that if the 12mm can hold a marinegasket and o rings it should hold the MLS gasket.
I dont know. I just feel that since Scheid has one of the big names out there they can tell you and charge you whatever they feel like.

Opinions please.

 

how much boost are you wanting to put out?

the 14mm can handle alot more, but there is also alot more involved with the installation

brett

 

I am only running a HTT 62/14. I might someday run a S400 twin setup.
But still the Cometic 24valve MLS gasket is good for 80PSI and so is the Scheid diesel MLS gasket.

 

For 90% of the people out there 12's are just fine.