Exhaust Manifold Gasket

[8DC]

Because it was the only one I could come across at the time (I needed a new headgasket fast), I purchased a '77 Ishino headgasket set for my '76 280z.

 

This is what arrived from PartsGeek:

Ishino is Stone? o.O

 

Knowing that '77 has round ports and my '76 has square, I also ordered a FelPro exhaust manifold gasket.

Much to my surprise, both exhaust manifold gaskets are identically cut with a hex like shape at the exhaust ports.

Are these universal now (thinking that the hex shape is meant to cover both the square and round holes) or is there another exhaust manifold gasket?

 

 

 

Also, the Stone/Ishino gasket (top) is made from a metallic material and slightly thicker than the FelPro gasket (bottom), which is made from a thin metal sheet sandwiched in what looks like cardboard. Would one be preferrable to the other?

[Xnke]

EXCELLENT! finally I know who makes the good manifold gaskets..Ishino!

 

That felpro gasket has given me nothing but issues, on three different cars. the first gasket I used was a fel-pro, but it was the graphite composite like that ishino you're showing, and I never had any issue with it...ever. When I changed the intake manifold over, I had to go with the cardboard garbage, because I couldn't find the graphite one again.