[Metica]

My pistons goes a little bit beyond the deck height at TDC. This varies a little, some pistons ends 0.003 inch above top deck, others as much as 0.009 inch.

If the piston-to-valve clearance is within spec., I guess this is not a problem?!

Now I wonder how thick head gasket I need for compensate for this? In compressed mode, of course.

The engine will see no more than 6100 rpm, and I'm using hypereutectic piston. The piston-to-cylinder-wall clearance is tight but within spec.

Advices are very welcome!

Kind regards /Peter

 

[SmoKum]

Something with a compressed thickness of .041", like say a Fel-Pro #1003 or 1004 will give you a good quench. Flat top pistons? Head cc's?

 

[Metica]

Flat top with two valve reliefs. Combustion chamber volume is 62 cc.

I've tried to find out the head gasket thickness when compressed, but the head gasket spec. is not to be found online (they are part of the gasket set "Trick Flow Specialties TFS-31400915").

It is .049" uncompressed, maybe it will work (I've sent an email to Trick Flow). Or your Fel Pro-tip is up next!

Kind regards /Peter