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Cometic C5247-040 MLS Cylinder Head Gasket Bore Chevy Small Block - 4.125 040

(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 + 168 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

C5247-040
8 reviews
Sale Price

$95.96

1 left at this price

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Usually delivered within 2 days

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Product Details

The Cometic C5247-040 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Gen-1 Small Block V8 engines. This high-performance gasket features a .040" compressed thickness and is designed for engines with a 4.125" bore diameter, making it ideal for performance rebuilds and racing applications.

Key Features:

  • Multi-Layer Steel (MLS) construction provides superior sealing and durability under extreme cylinder pressures
  • 4.125" bore diameter accommodates standard and slightly overbored small block Chevy configurations
  • .040" compressed thickness allows for precise deck height and compression ratio tuning
  • Compatible with 18-degree and 23-degree cylinder head designs
  • Round bore configuration with integrated steam holes for proper coolant circulation
  • Embossed stainless steel layers with Viton rubber coating ensure maximum combustion sealing

Cometic's MLS gaskets are the preferred choice among professional engine builders and racers who demand reliable sealing in high-performance applications. The multiple layers of stainless steel provide excellent recovery characteristics and maintain seal integrity through repeated heat cycles and extreme combustion pressures.

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 + 164 more models

Prop 65

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

Material

Multi-layer Steel

Had the product I needed at a price that couldn't be beat. The shipping was a little high, but not completely out of line, either, and it was still better than other companies who have even MORE ridiculous shipping rates. Will buy from them in the future if they have what I need.

Good

Great price and fast shipping!

thank you

Best price I could find on line, shipped really fast. With how low the price is I was worried but everything came fast and it was the correct parts. This place really keeps the cost of racing down.

Everything went seamlessly. I placed my order on a Thursday and it got here Tuesday morning. No problems, and it was the best price I could find.

Had to upgrade to a Snell 2010 helmet this year, bought the identical helmet for $200 less than I paid 8 years ago! Fast shipping, I will be checking Autoplicity first in the future!

GOOD PRICE! way to go keep up the good work!!!!

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