Cometic
Cometic Millennium 3-9/16in Bore Head & Base Kit .051in H/G & .020inB/G
Cometic Millennium 3-9/16in Bore Head & Base Kit .051in H/G & .020inB/G
Part number: CGSC9791-051-020
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- Free fitment check before you order
Head gasket from Cometic. The part number and specifications are listed below. The head gasket seals the cylinder head to the block, keeping combustion pressure in the cylinders and coolant and oil in their own passages.
Quick facts
- Brand: Cometic
- Part type: Head gasket
Tip: Most head gaskets call for new head bolts and a flat, clean deck surface. Check the head and block before you reassemble.

Before you order: fitment and what to plan
The head gasket seals the cylinder head to the block, keeping combustion pressure in the cylinders and coolant and oil in their own passages.
Fitment notes
- Specs, lead time and warranty come from Cometic and can change. The details above this guide are the latest we have.
Not sure it fits? Message us your vehicle details and we'll double-check fitment before you buy.
Ask about fitmentPlan the whole job
- Head bolts. Many engines use torque-to-yield head bolts that should not be reused.
- Coolant. Refill with the coolant type your engine calls for.
- Valve cover and intake gaskets. They come off during the job, so it is the time to replace them.
More for your car: All Head Gaskets · Engine
Questions about head gasket
Will this fit my car?
What are signs of a bad head gasket?
Should I resurface the cylinder head?
Where do specs and warranty details come from?
Questions & answers
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