Stock bore size Cometic's i cant find them anywhere or is there another bore size i can use? the smallest i can find are 3.905.... Help please!!! looking at ordering tonight.

 

they only make head gaskets for over hone size,will not hurt any thing.look into gm mls gaskets alot cheaper.

 

I have a set of 799 heads i am gonna throw on it, the reason i was looking at the cometics is cause i wanna bump the comp ratio up a little bit... is there any other gaskets out there that are thinner to bump my compression??? i dont really like the price tag on the cometics either.

 

3.905 works fine on a 3.898 bore.