Cometic C5434-086 Cylinder Head Gasket
Upgrade your Chevrolet Mark-IV or GM Gen-V/VI Big Block V8 with the Cometic C5434-086 MLS Cylinder Head Gasket. Designed for aftermarket heads, this gasket features a compressed thickness of .086" and a bore size of 4.630". With five layers of durable MLS material, it ensures a reliable seal under high-performance conditions.
Key Features
- Material: MLS (Multi-Layer Steel)
- Compressed Thickness: .086"
- Bore Shape: Valve Pocketed
- Bore Size: 4.630"
- Layers: 5
- Customizable Water Ports: Undersized for flexibility
Why Choose Cometic?
Cometic is renowned for its high-quality gaskets that withstand extreme conditions, making them a trusted choice for performance enthusiasts. At Racestage.eu, we offer exclusive access to Cometic products, ensuring you receive authentic parts that enhance your vehicle's performance. Shop with us for unbeatable quality and service!
Vehicle Compatibility
| Brand | Model | Generation / Chassis | Engine |
|---|---|---|---|
| Chevrolet | MARK-IV, GEN-V/VI BIG BLOCK V8 | - | - |
| Chevrolet | MARK-IV, GEN-V/VI BIG BLOCK V8 | - | - |
COMETIC
Founded in 1989 in Concord, Ohio, USA, Cometic Gasket offers over 85,000 high-performance gasket SKUs for automotive, powersports, and motorsport applications, all made in the USA.
Covering drag, road race, and sport compact builds, Cometic is the trusted source for precision engine sealing worldwide.
Official page: www.cometic.com
Covering drag, road race, and sport compact builds, Cometic is the trusted source for precision engine sealing worldwide.
Official page: www.cometic.com
| Default | |
| Make | GM |
| Engine | Big Block |
Chevrolet Mark-IV Big Block V8 .086 MLS Head Gasket 4.630
162.64€
Excl. VAT: 134.41€
| Brand | Model | Generation | Engine |
|---|---|---|---|
| Chevrolet | MARK-IV, GEN-V/VI BIG BLOCK V8 | - | - |
| Chevrolet | MARK-IV, GEN-V/VI BIG BLOCK V8 | - | - |

Covering drag, road race, and sport compact builds, Cometic is the trusted source for precision engine sealing worldwide.
Official page: www.cometic.com
| Default | |
| Make | GM |
| Engine | Big Block |