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Cometic C5645-056 GM Gen V Small Block MLS Cylinder Head Gasket Bore - LT1/LT4 V8 4.040

(1993-1996 Chevrolet Camaro; 1992-1996 Chevrolet Corvette; 1994-1996 Chevrolet Impala; 1994-1996 Chevrolet Caprice + 4 more models)

Part of: Cometic GM Gen V Small Block MLS Cylinder Head Gasket Bore

Other options in this family: Cometic C5399-040 Cometic C5272-036 Cometic C5646-040 Cometic C5323-040 Cometic C5323-036

Manufacturer

Picture for manufacturer Cometic

Part Number

C5645-056
9 reviews
Sale Price

$127.71

Estimated ship date Tuesday, November 24

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Product Details

The Cometic C5645-056 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM LT1 and LT4 Gen V (Generation 5) small block V8 engines. This premium gasket features a 4.040-inch bore diameter and .056-inch compressed thickness, providing exceptional sealing and durability for both stock and high-performance applications.

Key Features:

  • Multi-Layer Steel (MLS) construction for superior sealing and reliability
  • 4.040-inch bore diameter designed for GM LT1/LT4 engines
  • .056-inch (1.42mm) compressed gasket thickness
  • Engineered for Gen V small block V8 engines (2014+)
  • Handles high cylinder pressures in boosted and naturally aspirated applications
  • Allows for micro-movement between head and block while maintaining seal integrity
  • Embossed stainless steel construction with proprietary coating

Cometic MLS head gaskets are the choice of professional engine builders and performance enthusiasts worldwide. The multi-layer design distributes load evenly across the sealing surface while accommodating thermal expansion and minor surface imperfections. Ideal for street performance, racing, and forced induction applications where reliability is critical.

Products specifications

Fits

1993-1996 Chevrolet Camaro; 1992-1996 Chevrolet Corvette; 1994-1996 Chevrolet Impala; 1994-1996 Chevrolet Caprice; 1994 Chevrolet Commercial Chassis; 1993-1996 Pontiac Firebird; 1994-1996 Buick Roadmaster; 1994-1996 Buick Commercial Chassis

Prop 65

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

Material

Multi-layer Steel

no problem

It was great

Great service

placed order

Super fast delivery for such a big item. I would use them again. The product was packaged well and unharmed on arrival. Installation was quick too.

I was satisfied with customer service and the product, however, i was disappointed to learn that it would take 3 days to get a refund applied to my card.

Your shipping was much more reasonable than the previous site on which we found our same items. Thank you!

Easy to find parts at great prices!

Fast ordering !

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