Description
Product Overview
The COMETIC C5479-040 head gasket is specifically designed for the Ford 302/351W Windsor V8 with a .040″ MLS configuration. Constructed from high‑strength aramid fiber, the gasket offers superior heat resistance and durability. Its round, precision‑machined shape ensures an exact fit over the 4.060″ bore, providing a consistent seal that maintains compression and prevents leaks. Key specifications include a 1‑pound weight, OEM part number C5479-040, and compliance with manufacturer standards.
Usage
This gasket is ideal for both performance enthusiasts and daily drivers seeking reliable engine sealing. Suitable for high‑compression builds, street performance upgrades, and routine maintenance, it fits seamlessly into the Ford 302/351W cylinder head. Install during a head rebuild or replacement to restore optimal compression and engine efficiency.

Why Choose Us
COMETIC delivers automotive components with rigorous quality control and engineering expertise. The aramid fiber material provides exceptional resistance to heat and chemical exposure, extending service life compared to traditional composite gaskets. Each unit undergoes precision machining and thorough inspection, ensuring a perfect fit and reliable performance for demanding applications.
Key Features
- Aramid fiber construction for high heat resistance and durability
- Precision‑machined round design ensures exact fit on 4.060″ bore
- .040″ MLS thickness provides optimal compression sealing
- OEM compatible with part number C5479-040 for Ford 302/351W engines
- Lightweight (1 lb) yet robust, suitable for high‑performance builds
FAQ
Is this gasket compatible with all 302/351W engines?
Yes, the C5479-040 is designed for the Ford 302/351W Windsor V8 with a .040″ MLS configuration, matching the OEM specifications.
Can I install this gasket myself?
Experienced DIYers can install it during a head rebuild. Follow torque specifications and ensure the mating surfaces are clean for the best seal.
What advantages does aramid fiber offer over traditional composite gaskets?
Aramid fiber provides superior heat resistance, higher tensile strength, and longer service life, reducing the risk of gasket failure under high‑performance conditions.
Does this gasket require any special break‑in procedure?
No special break‑in is needed; simply install according to the service manual and torque the head bolts to the manufacturer’s specifications.
Is the gasket covered by a warranty?
COMETIC offers a limited warranty against manufacturing defects, ensuring you receive a reliable product for your engine rebuild.




Cometic Head Gasket C5934-051 Aluminum Seal
Reviews
There are no reviews yet.