Well the more and more I look into it, someone just bought these heads to make work with the piston set up, instead of vise versa. It says on the AFR website max flat mill is .006" per CC with a maximum of 60cc.

 

Would you say a set of LE2's would be a more superior head?

 

Ok, the original owner of this engine states he is 100% certain that the head gaskets in the engine are cometic MLS 0.030. ThEy have NO stampings or part numbers on them, making it hard to know forsure. I am now looking for a set of 0.030 non MLS head gaskets. Is there such a thing?? Builder believes it will seal up better then an MLS gasket.

Thanks,
Greg

 

FelPro makes a .039 head gasket. I use that one

 

Yea, I see that. Was hoping for something a little thinner. More like .030

 

Mr Gasket has a .029....

 

MLS is widely used. There is a requirement for the quality of the finish of the head and block surfaces. Is that what your engine builder is concerned about?

 

Yes because my heads are slightly pitted from running dexcool. Do to the heads already being milled down to 60cc which is what AFR states is the maximum amount that can be flat milled I don't want to take anymore off the heads. I know I have room because the pistons are in the cyclinder .030. Maybe if I don't have an option with a quality non MLS gasket I will have to mill the heads and intake. Any suggestions??

 

...and again

https://www.holley.com/products/gask...ts/parts/5716G

 

Thanks. Showing 0.026" compressed thickness.

 

I see " 0.026" " on the font page. But when I opened the "SPECS" tab, it indicates ".040 inch" ? ? ?

 

Haha I am dumb founded. I feel like I might take a chance and get some cometic MLS 0.030" 4.040" bore to get the seal closer to the cylinder. I don't know. Here is a picture of the head. Maybe it's not bad? I don't know!

 

another "wrong" 411 on that site. It isn't .040

Victor Reinz (aka Mr gasket) # 5898 it is .026 compressed. For Gen 2 LT1

Many Impala guys ran it when they couldn't get the factory GM head gasket for the iron head motors