I'm installing some 317's on a 5.3l for a turbo application. What Gm MLS head gasket would I use. One for a 5.3l or one for a 6.0l? If anyone happens to have the GM part number, that would be a bonus.

Thanks, Rick

 

Use the 6.0 headgasket to match the head. A 5.3 gasket will hang over into the combustion chamber in the head. Part number 12589227.

 

Thanks for the part number. I kind of figured I would get some valve shrouding with a 5.3 or 5.7 gasket. I would like to try the new 5 layer GM gaskets but the large bore would'nt give me enough material between cyclinders.

Rick