rpcraft
Full Access Member
- Joined
- May 31, 2016
- Posts
- 1,333
- Reaction score
- 512
- Location
- Texas
- First Name
- Robert
- Truck Year
- 1985
- Truck Model
- Jimmy
- Engine Size
- LS 6.0 364 CID
I'm willing to bet is because the multi-layer surface gaskets replaced them and probably have better sealing over one gasket surface, but that is just a guess if I had to think about it. I know I've never really had too many issues with one but then again all I have used them for is header to head gaskets.