I'm putting a new set of stock heads on my 5.3 truck engine and I don't care to give $120 for a set of top end gaskets. I'm considering using the $20 gaskets from NAPA that I have used in the past on my 98 TA. The only difference that I know of is the 346 gaskets are about .100 bigger hole in the gasket. Anybody know if this will cause a problem? I'm also contemplating having the heads milled .010-.020 to raise the compression slightly. Can anyone shed some light on what the max amount is that I could have shaved off and if the 5.7 gasket would be ok for the 5.3? Thanks for any help or insight you can give.
Wolfee

 

No one knows the answers or what? I guess the car side just has more people but I'm used to some one at least saying that I'm crazy or something
Wolfee