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Cometic C5811-040 Oldsmobile Rocket MLS Cylinder Head Gasket Bore - Gen-2 V8 4.270

(Chevrolet Camaro 1972-75, Impala 1972-75, Malibu 1973-75, Chevelle 1972-73, C10 Pickup 1972, Caprice 1972-75, El Camino 1972-75 + 71 more models)

Part of: Cometic Oldsmobile Rocket MLS Cylinder Head Gasket Bore

Other options in this family: Cometic C5809-040 Cometic C5809-027 Cometic C5809-060 Cometic C5809-036 Cometic C5808-051

Manufacturer

Picture for manufacturer Cometic

Part Number

C5811-040
4 reviews
Sale Price

$107.16

Estimated ship date Tuesday, November 24

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Product Details

The Cometic C5811-040 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for Oldsmobile Generation 2 Rocket V8 engines. This high-performance gasket features a 4.270-inch bore diameter and a .040-inch (1.02mm) compressed thickness, making it ideal for performance builds and engine rebuilds requiring precise compression control.

Key Features:

  • Multi-Layer Steel (MLS) construction provides superior sealing and durability under extreme cylinder pressures
  • .040-inch compressed gasket thickness allows for precise compression ratio tuning
  • 4.270-inch bore diameter engineered for Oldsmobile Gen-2 Rocket V8 applications
  • Embossed stainless steel layers with Viton rubber sealing beads maximize sealing effectiveness
  • Eliminates coolant and combustion gas leakage between the block and cylinder head
  • Designed to withstand high horsepower and boost applications

Cometic MLS gaskets are manufactured using multiple layers of stainless steel with precision-formed embossments and proprietary coating materials. This construction allows the gasket to adapt to minor surface imperfections while maintaining consistent clamping pressure across the entire sealing surface. The result is a reliable, reusable gasket that performs exceptionally in both street and racing applications.

Products specifications

Fits

Chevrolet Camaro 1972-75, Impala 1972-75, Malibu 1973-75, Chevelle 1972-73, C10 Pickup 1972, Caprice 1972-75, El Camino 1972-75, Monte Carlo 1972-75, Nova 1972-75, K10 Pickup 1972, Bel Air 1972-75, K20 Pickup 1972, G20 Van 1972 + 65 more models

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Material

Multi-layer Steel

quick

My first order and I must say, very impressive! Awesome prices and super-fast shipping direct from the manufacturer. Couldn't ask for more! I will return.

This was my first order with Autoplicity. Their prices were great, and the ordering process very easy. I was a little frustrated at first, as the order didn't arrive as expected. When I called, it took a little work, but I finally got the info that it was shipping from the manufacturer, and did get the tracking info. The parts arrived when tracking said it should. Would I place another order with Autoplicity? Short answer is yes!

Purchased K&N Filter. Excellent price and received filter as scheduled.

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