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Cometic C5409-075 AMC MLS Cylinder Head Gasket Bore - 390/401 075 4.380

(1974-1978 Jeep Cherokee; 1974-1978 Jeep J10; 1974-1978 Jeep Wagoneer; 1974-1978 Jeep J20; 1971-1974 American Motors Javelin + 2 more models)

Part of: Cometic MLS Cylinder Head Gasket Bore Honda

Other options in this family: Cometic C4311-040 Cometic C4251-030 Cometic C4232-030 Cometic C4962-028 Cometic C5434-051

Manufacturer

Picture for manufacturer Cometic

Part Number

C5409-075
8 reviews
Sale Price

$147.29

Estimated ship date Tuesday, November 24

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Product Details

The Cometic C5409-075 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for AMC 390 and 401 cubic inch Gen-3 V8 engines equipped with Indy cylinder heads. This high-performance gasket features a compressed thickness of .075 inches and a 4.380-inch bore diameter, making it ideal for modified engines requiring precise sealing and combustion control.

Key Features:

  • Multi-Layer Steel (MLS) construction provides superior sealing and durability under extreme conditions
  • .075-inch compressed thickness allows for precise compression ratio tuning
  • 4.380-inch bore diameter optimized for performance builds
  • Designed for 18-bolt cylinder head configurations with Indy heads
  • Accommodates engine movement and thermal expansion better than composite gaskets
  • Resistant to blowout and extreme temperatures

Cometic's MLS gaskets feature multiple layers of stainless steel with specialized coatings that create a superior seal around combustion chambers, coolant passages, and oil ports. This gasket is specifically engineered for AMC Gen-3 V8 applications running Indy aftermarket cylinder heads, ensuring proper fit and reliable performance in street, strip, and racing applications.

Products specifications

Fits

1974-1978 Jeep Cherokee; 1974-1978 Jeep J10; 1974-1978 Jeep Wagoneer; 1974-1978 Jeep J20; 1971-1974 American Motors Javelin; 1971-1974 American Motors Ambassador; 1971-1976 American Motors Matador

Prop 65

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

Material

Multi-layer Steel

All is well

Quick and easy

Easy order.

Great so far. I hope shipping is fast.

Website easy to navigate and products delivered sooner than expected.

Great price. Easy process. Highly recommended. Repeat buyer.

.

it was a great andeasy experience

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