Alright I'm doing the 243 head swap on my 5.3(lm7) and I'm having trouble finding the right gasket I need, I can't find the .040 thickness gasket I need. So if anyone has a part number or any help with this that'd be great.

Thanks.

 

Just order the correct head gasket and head bolts based off of your vin and it will be what you need no special gasket or bolts needed.

 

Cometic Part number C5475-040