zermatt944t

I upgrade my 951 to 2.7l with a 104mm bore. The problem is there is no 104 mm head gasket to match. I found only 103mm or 106mm mls cometic gasket. What is the better match????

refresh951

Cometic will make whatever bore you want for no extra cost. Also, it only takes about a week to get it! Call them.

Tom M'Guinn

By my measurements, the fire ring inside diameter on a standard 944/968 head gasket is 2mm bigger than the bore. So the head gasket for a 100mm bore has a 102mm opening, and the head gasket for a 104mm bore has a 106mm opening. So that 106mm gasket you found might be just what you need, if you mean the fire ring is actually 106mm across.

Edit: Just noticed you are talking about MLS gaskets. I was referring to standard and widefire gaskets, not MLS -- so worth a call to see how they spec the opening relative to the bore, as it may or may not be the same.

azbanks

https://rennlist.com/forums/944-turb...-are-here.html

Dave951

Was there any resolution to the original question for the gasket sizing?

JacRyann

For 104mm bore, you want a 106mm gasket.