
Cometic's MLS head gasket for Nissan RB25DE/RB25DET with an 87mm bore has a compressed operating thickness of 0.045" and uses multiple embossed stainless steel layers with Viton-coated outer faces. The uncoated stainless shim layer allows thickness variation. This multi-layer steel construction seals high-output engines without sealants and suits aluminum-head-to-block applications.
Cometic Nissan RB-25 6 CYL 87mm .045 inch MLS Head Gasket