MLS head gaskets provide the ultimate seal between your engine block and cylinder head. Due to the all metal construction of these gaskets there are a few guidelines to follow to ensure proper sealing and longevity of your gasket.
- The MLS head gasket requires a very smooth engine block deck and cylinder head surface. You must have your block and head surfaced to an RA finish of 8 or better. This is a common rating that any machine shop should be familiar with.
- Do not use any type of sealer (such as copper coat) on either side of the gasket. The only type of sealer we would recommend using would be a small dab of silicone where the timing cover meets the engine block (on timing chain, not belt, applications only; such as 20R/22R/RE/RET & 2RZ/3RZ).
- MLS gaskets will also require the use of head studs instead of bolts to help ensure a more even torque. Follow the head stud directions for torque ratings and procedures.
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