1fastlaser
20+ Year Contributor
- 965
- 0
- Jan 25, 2003
-
glendora,
New_Jersey
I thought ive read it before but not sure if people have done it. I would guess I is no different then a oem mls and a o ring.
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Any time a protruding o-ring is used, something has to give. With a composite gasket and SS rings, the gasket gives. With an MLS gasket, the copper rings give. In either case, that doesn't mean sealing isn't improved. The copper o-ring/MLS combo has been sucessful for years. The only drawback is that you're replacing the o-rings everytime you pull the head.Copper rings with mls are useless. The copper just smashes down. As mentioned above, i always ring the block anyway.
Interesting. Do you know how far the o-ring is protruding from the surface?I run a stainless o-ring in the head on a OEM MLS gasket per Shep's reccomendation years ago and have not pushed a single drop of coolant thus far up to 60psi of boost. In Jason's street car and the other cars here we run copper o-rings in the block with OEM MLS gaskets.