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Cometic C5817-070 GM Gen V/VI Big Block MLS Cylinder Head Gasket Bore - V8 4.320

(Chevrolet C1500 1991-93, K2500 1991-95, C3500 1991-97, 1999-2000, C2500 1991-95, K3500 1991-95, K2500 Suburban 1992-95, P30 1991-97 + 17 more models)

Part of: Cometic GM Gen-V/VI Big Block MLS Cylinder Head Gasket Bore

Other options in this family: Cometic C5333-027 Cometic C5334-060 Cometic C5333-040 Cometic C5333-066 Cometic C5334-066

Manufacturer

Picture for manufacturer Cometic

Part Number

C5817-070
8 reviews
Sale Price

$147.82

Estimated ship date Wednesday, November 25

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Product Details

The Cometic C5817-070 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM Generation V and VI Big Block V8 engines. This high-performance gasket features a 4.320-inch bore diameter and .070-inch compressed thickness, making it ideal for modified engines requiring precise sealing under extreme cylinder pressures.

Key Features:

  • Multi-Layer Steel (MLS) construction for superior sealing and durability
  • 4.320-inch bore diameter accommodates performance big block builds
  • .070-inch compressed thickness allows for custom compression ratio tuning
  • Designed for GM Gen V and Gen VI Big Block V8 engines
  • Embossed stainless steel layers with elastomeric coatings for maximum conformability
  • Withstands extreme cylinder pressures in high-performance and racing applications

Cometic MLS gaskets feature multiple layers of stainless steel with advanced coatings that adapt to sealing surface imperfections while maintaining consistent clamping pressure. The .070-inch thickness provides additional clearance for stroker builds or allows builders to adjust compression ratios precisely. This gasket is ideal for street performance, racing, and forced induction applications where reliability under extreme conditions is critical.

Products specifications

Fits

Chevrolet C1500 1991-93, K2500 1991-95, C3500 1991-97, 1999-2000, C2500 1991-95, K3500 1991-95, K2500 Suburban 1992-95, P30 1991-97, C1500 Suburban 1992-93, G30 1991-96, C2500 Suburban 1992-95, R3500 1991, R2500 Suburban 1991 + 12 more models

Prop 65

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

Material

Multi-layer Steel

so far so good

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Good price, quick shipping, easy

My Superchips Cortex arrived within a few days of order and by far was the best price arround. Product arrived in perfect condition and worked as described. Great deal. Order #10984

Thanks again! Best prices I found on the web! Fast shipping Would definitely buy from again!

In a rush to get my car up and running, Autoplicity had the best price on the items I needed, and in stock as well as shipped quickly. Just what I was looking for, thanks!

Great price. Minor problems with shipping because of UPS (dropped box and broke part, late delivery). Autoplicity sending me out replacement part.

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