Cometic Gaskets Worth The Price's ?

[My427stang]

Take a picture of your head and the intake surface upside down.  We should be able to tell you what the ports are from a picture.

[Falcon67]

I used Cometic on the first go-around on the 393C.  When I pulled the heads this winter, there were stains and evidence of water intrusion into the cylinders.  Head and deck surfaces were cut specifically to Cometic specs.  After conferring with other C engine builders, I went back this year with regular Felpro Blue 1013s.  Have no explanation on why the Cometic units didn't seem to seal up.  They look good, hanging on a hook at the back of the shop.

[4twennyAint]

I ran Cometic gaskets with 15psi boost on 306 SBF for several years, no issues.  Car was driven hard on street and probably had 50 quarter mile passes (10.6@128).   It lost oil pressure so pulled for inspection; the block cracked between crank and cam journals.  I like Cometic.