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Cometic C5247-080 MLS Cylinder Head Gasket for Chevrolet Small Block - Gen-1 V8

(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)

Manufacturer

Picture for manufacturer Cometic

Part Number

C5247-080
6 reviews
Sale Price

$140.32

Estimated ship date Friday, November 20

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Product Details

The Cometic C5247-080 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered for Chevrolet Gen-1 Small Block V8 engines. Designed for enthusiasts and engine builders who demand maximum reliability under extreme conditions, this gasket features Cometic's proven MLS construction that provides superior sealing and durability in high-performance and racing applications.

Key Specifications:

  • Bore Size: 4.125 inches with round bore design for optimal cylinder sealing
  • Compressed Thickness: .080 inches (80 thousandths) for precise compression ratio tuning
  • Head Angle Compatibility: Designed for 18-degree and 23-degree cylinder heads commonly found on aftermarket performance heads
  • Steam Holes: Integrated steam hole design ensures proper coolant circulation
  • MLS Construction: Multiple layers of stainless steel with advanced coating technology provide exceptional recovery and conformability

Application: This gasket is compatible with Chevrolet Gen-1 Small Block V8 engines (265-400 cubic inch), including 265, 283, 302, 305, 327, 350, 383, and 400 variants. The 18/23-degree head angle specification makes it ideal for use with popular aftermarket aluminum cylinder heads from manufacturers producing angled-valve performance heads.

Performance Benefits: Cometic's MLS gaskets are the preferred choice for turbocharged, supercharged, and naturally aspirated high-performance engines. The multi-layer steel design handles extreme cylinder pressures, maintains seal integrity through thermal cycling, and accommodates minor surface imperfections better than conventional composite gaskets. The .080-inch thickness allows engine builders to fine-tune compression ratios for optimal performance with aftermarket pistons and heads.

Note: Proper surface preparation and torque specifications are critical for MLS gasket installation. Cylinder heads and block surfaces should have a smooth finish (typically 50 RA or better) for best results.

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.

The ordering process was easy and the price of the product was fair. I was; however, disappointed with one thing. I received an email from Autoplicity for 25% off shipping but it would not work when I was checking out. I called the customer service number and the gentleman was not helpful at all.

Great price and fast shipping!

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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