Description
Product Overview
The Cometic Head Gasket is a universal, high‑performance gasket engineered for 84mm bore applications with a .030 inch multi‑layer steel (MLS) construction. Manufactured by Cometic, this gasket features a precision‑cut design that matches the OEM specifications of B18A and B18B engines, ensuring a perfect fit and superior sealing. Weighing just 9.6 ounces and measuring 17.5 x 8.3 x 0.1 inches, it offers a lightweight yet robust solution for performance enthusiasts.
Usage
Designed for both street and track use, this gasket excels in high‑compression environments, providing consistent sealing during aggressive driving and routine maintenance. Ideal for engine rebuilds, swaps, and upgrades, it serves professional mechanics and DIY hobbyists alike who demand reliability and durability in demanding conditions.

Why Choose Us
Cometic’s reputation for precision engineering ensures each gasket meets strict quality standards. The MLS design offers enhanced strength and flexibility, reducing the risk of warping under heat cycles. Backed by a 5‑star customer rating and rigorous testing, this gasket delivers confidence for critical engine applications.
Key Features
- 84mm bore with .030″ MLS construction for superior sealing
- Exact OEM fit for B18A and B18B engine conversions
- Lightweight aluminum core reduces overall engine weight
- High temperature and pressure resistance for performance driving
- 5‑star customer satisfaction rating confirming reliability
FAQ
Is this gasket compatible with the B18C5 VTEC head?
Yes, the universal design accommodates the B18C5 VTEC head, providing the same sealing performance as for B18A and B18B.
What is the benefit of MLS construction?
Multi‑layer steel offers greater strength and flexibility, preventing deformation under high heat and pressure, which extends gasket life.
Can I install this gasket myself?
With basic mechanical tools and a clean engine surface, a DIY installation is feasible. Follow the included torque specifications for optimal results.
Does the gasket require a special coolant?
No special coolant is needed; standard engine coolant compatible with your vehicle is sufficient.
What warranty does Cometic provide?
Cometic offers a limited warranty covering manufacturing defects, reflecting confidence in product durability.






Chevrolet Head Gasket COMETIC MLS
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