Been doing research on head gaskets now for awhile the cometic latered gaskets seem to be the high use, But I been chatting with 5 builders now and they are having copper gaskets made for them custom for 2 strokes amd the 4 strokes they claim that the paper gaskets compress to much and that copper wont compress but exspand, they are also going away from gaskets and just going with O rings.
Thoughts???

 

erbeds, i had a little trouble with the copper gasket, but since i have went to the triple layer cometic, i havent had a leak in over a year....the cometic gasket is damn near bullet proof, i havent heard of a failure with anyone using it so far...hope this helps...

 

The cometic multi-layer steel "MLS" is the best you can buy for the DS. No O-ring is needed.

 

ERBE,

I have to agree with the experts here. If copper expands and vibrates, it contracts too. Adjusting valves is for the birds.

I've had a half foot long penny that was earlier put on Stone Mountain train track. Copper may work for 2 strokes, but not for 4 strokes due to elasticity, heat, mechanical head vibration, and weight factors.

I've never heard of any problems with stock head gasket or adjusting valves.