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Cometic C5271-030 MLS Cylinder Head Gasket Chevy Small Block Bore - for V8 4.125

(GMC G2500 1979-86, K1500 1979-86, C1500 1979-86, K2500 1979-86, Jimmy 1970-86, C3500 1979-86, K2500 Suburban 1979-86, K3500 1979-86 + 162 more models)

Part of: Cometic MLS Cylinder Head Gasket Bore Chevy Small Block

Other options in this family: Cometic C5245-040 Cometic C5269-040 Cometic C5403-051 Cometic C5246-051 Cometic C5248-080

Manufacturer

Picture for manufacturer Cometic

Part Number

C5271-030
9 reviews
Sale Price

$99.13

1 left at this price

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Usually delivered within 2 days

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Product Details

The Cometic C5271-030 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Generation 1 Small Block V8 engines. This high-performance gasket features a .030" compressed thickness and is designed to accommodate a 4.125" bore diameter, making it ideal for stock and slightly overbored applications.

Key Features:

  • Multi-Layer Steel (MLS) construction provides superior sealing and durability under high combustion pressures
  • .030" compressed thickness allows for precise deck height and compression ratio tuning
  • 4.125" bore diameter fits stock and mild performance builds
  • Valve pocketed bore design provides clearance for larger valves and performance cylinder heads
  • Compatible with 18-degree and 23-degree cylinder head angles
  • Integrated steam holes for proper coolant flow and temperature management
  • Embossed stainless steel construction with Viton rubber sealing beads

Cometic MLS gaskets are a proven choice for engine builders seeking maximum reliability in street performance, racing, and forced induction applications. The multi-layer design allows the gasket to flex and recover, maintaining an optimal seal through heat cycles and engine vibration. This gasket is ideal for small block Chevy builds ranging from street restorations to serious performance applications.

Products specifications

Fits

GMC G2500 1979-86, K1500 1979-86, C1500 1979-86, K2500 1979-86, Jimmy 1970-86, C3500 1979-86, K2500 Suburban 1979-86, K3500 1979-86, C15/C1500 Pickup 1967-74, C2500 1979-86, K1500 Suburban 1979-86, G25/G2500 Van 1967-74 + 158 more models

Prop 65

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

Material

Multi-layer Steel

All good, quick easy. Best price

Greattttt

Great prices and fast delivery.

GREAT

N/a

Overall good experience, price was good was what it was suppose to be and arrived in a timely manner. Very satisfied.

Part did not fit correctly

Product delivered in a timely manner with no issues.!

Will purchase from seller again.

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