Current Lead Times: In Stock Engines Ship Same or Next Day - Out of Stock: 1-3 Weeks on Most Long Block Engines; 3-5 Days on Heads – *call us for more exact lead times for your specific build 

O Ring Heads Duramax



Service: O Ring Heads

Using your supplied heads, a receiver groove is machined into the deck surface of the heads and our USA made stainless wire is pressed into the groove, the wire protrudes from the groove applying extra pressure to all layers of the gaskets- sealing combustion pressure in the cylinder. Significantly reducing the possibility of head gasket failure.

  • O-ring heads: Duramax
  • It is reusable should you have the heads off of the engine for any reason in the future.
  • Our o-ringed heads work with any standard off the shelf head gasket.
  • We do not require any special machining of the block just prep the deck surface ensuring the block is clean dry and flat.
  • The O-ring provides a heat sink from the fire ring and conveys that heat obtained into the cooling system, extending the life of the head gasket as heat is the number one killer of these gaskets.

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