Cometic Twin Cam Stock Bore Head Gasket Pair - Harley Twin Cam
About Cometic
Cometic Gasket manufactures multi-layer steel head gaskets and complete gasket kits in Concord, Ohio. On a built V-twin running higher compression or a big-bore kit, the MLS head gasket is what keeps the top end sealed — which is why Cometic is the default spec on so many engine builds.
When servicing your Twin Cam V-twin, fresh head gaskets are essential for maintaining proper compression and preventing leaks. This Cometic head gasket pair is specifically designed for stock bore Twin Cam engines, ensuring an OEM-equivalent fit and reliable seal. Sold as a two-pack, you'll have both gaskets needed for a complete cylinder head refresh.
Why riders pick this
- Direct replacement for Twin Cam stock bore engines
- Ensures precise sealing between head and cylinder
- Sold as a pair for both cylinders
- OEM-equivalent design for reliable performance
This Cometic head gasket pair is engineered for Harley-Davidson Twin Cam engines with stock bore specifications. Crucial for any top-end work or engine rebuild, these gaskets provide a precise seal between the cylinder heads and engine block. Using OEM-equivalent design principles, Cometic ensures these gaskets meet the demands of your V-twin, preventing oil and compression leaks that can rob your bike of performance.
Precision Sealing for Twin Cam Engines
- Designed specifically for Twin Cam engines
- Stock bore specification ensures accurate fitment
- Sold as a 2-pack for both cylinder heads
- OEM-equivalent design for reliable sealing
Restore Your Engine's Integrity
Whether you're performing routine maintenance or a complete engine overhaul, replacing your head gaskets is a critical step. These Cometic gaskets are manufactured to precise standards, giving you confidence in your engine's seal. They are intended for stock displacement engines; if your engine has been bored out, you'll need a different gasket to ensure proper sealing. Always follow your service manual's torque sequence and values for installation.
Specifications
- Brand: Cometic
- Manufacturer Part #: C9790
- Quantity: 2 per pack
- Length: 6 in
- Width: 7 in
- Height: 0.45 in
- Weight: 0.205 lbs
Common questions
Is this head gasket compatible with my Harley Twin Cam?
Yes, this head gasket pair is designed for Harley Twin Cam engines with stock bore specifications. Please confirm your engine's displacement before ordering.
Why are these gaskets sold as a pair?
A pair is supplied because Twin Cam engines have two cylinders, and both head gaskets should be replaced simultaneously during a rebuild or top-end service to ensure consistent sealing.
Can I use these gaskets on a modified or bored-out engine?
No, these gaskets are specifically for stock bore engines. If your engine has been modified with an oversized bore, you will need gaskets designed for that specific application.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Cometic |
| TYPE | Gaskets/Seals |
| SKU | 68-9790 |
| WEIGHT | 0.21 lb |
