Specifications
- Brand
- Cometic Gasket
- Part #
- C15262-040
- UPC
- 191070099848
Cometic Pontiac 389/421 V8 4.3in Bore .040in MLS Head Gasket
$108.99
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Cometic Pontiac 389/421 V8 .040in MLS head gasket. 4.3in bore. Designed for improved sealability on open deck blocks.
Key Features
- Fits a range of classic vehicles including Jaguar XK models and Pontiac Bonneville, Catalina, and GTO.
- Multi-Layer Steel (MLS) construction for durability.
- HP shim technology increases clampload around the combustion chamber for improved sealing.
- Embossed outer layers are coated with Viton for enhanced sealing performance.
- Designed for a 4.300-inch bore.
- Gasket thickness is 0.040 inches.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
If you're rebuilding the top end of a classic Pontiac V8, like a 389 or 421, getting the head gasket right is crucial for a solid seal. This Cometic Multi-Layer Steel (MLS) head gasket is built with HP shim technology that increases the clamping force around the combustion chamber. This is especially helpful for open deck blocks, ensuring a better seal and helping prevent leaks.
The embossed outer layers of this gasket are coated with Viton, a material known for its resistance to heat and various fluids. This construction helps the gasket maintain its seal under the demanding conditions found in a performance engine. It's designed for a 4.300-inch bore and is 0.040 inches thick, making it a precise fit for many classic Pontiac engines from the late 50s and 60s, as well as some Jaguar models from the same era.
Specifications
- Brand
- Cometic Gasket
- Manufacturer Part #
- C15262-040
- UPC
- 191070099848
Frequently Asked Questions
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Cometic Pontiac 389/421 V8 4.3in Bore .040in MLS Head Gasket