12 Valve Fire Ring gasket Standard

12-Valve Fire Ring Head Gasket — Standard

Fire ringing is what ends repeat head gasket failure on a high-boost 12-valve. The wire ring bites into a machined groove and seals the cylinder far harder than a conventional gasket can at these pressures.

Gasket Specifications

• Thickness: .070" (1.5 mm)
• Wire: .105", 4.560" O.D.
• Groove: .025"–.026" depth, cut with a .120" radius cutter

Installation Requirements

This is a machined installation, not a drop-in gasket.

• Head studs are mandatory for proper clamp load
• Head and block must be verified flat
• Under 800 hp: a groove in either head or block is adequate
• Over 800 hp: cut grooves in both for maximum sealing

Fitment

1989–1998 Dodge Ram 5.9L Cummins 12-valve engines.

Fitment Table

Frequently Bought Together

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