03-04 Ford F250 / F350 6.0L Powerstroke Sinister SD-BD18-6.0 Black Diamond 18mm Head Gaskets

Sinister Diesel has now perfected our multi-Layered Steel cylinder head gaskets. Featuring a durable black coating, with five stainless steel layers. Adaptive fluoroelastomer (FKM) coating flows to seal rougher surface finishes. These gaskets were designed to keep the cost down, and the performance up.