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Cometic C5699-040 MLS Cylinder Head Gasket for Chevrolet Inline Bore - Gen-3 6 4.125

(GMC G2500 1979-84, K1500 1979-84, C1500 1979-84, K2500 1979-84, Jimmy 1970-82, C3500 1979-84, K2500 Suburban 1979-82, 1984, K3500 1979-84 + 116 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

C5699-040
10 reviews
Sale Price

$175.43

1 left at this price

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Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Cometic C5699-040 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for Chevrolet Gen-3 inline 6-cylinder engines. This high-performance gasket features a 4.125-inch bore diameter and a .040-inch compressed thickness, providing exceptional sealing and durability for both stock and modified applications.

Key Features:

  • Multi-Layer Steel construction for superior sealing and combustion pressure containment
  • 4.125-inch bore diameter engineered for Chevrolet Gen-3 inline 6 engines
  • .040-inch compressed gasket thickness
  • Embossed stainless steel layers with Viton rubber coating resist fluid leakage
  • Exceeds OEM specifications for strength and reliability
  • Ideal for high-performance, turbo, supercharged, and high-compression applications

Cometic MLS gaskets use multiple layers of stainless steel with advanced coating technology to create a gasket that can withstand extreme cylinder pressures and temperatures. The flexible design allows the gasket to conform to imperfect sealing surfaces while maintaining superior combustion sealing, making it an excellent choice for both street and race applications.

Products specifications

Fits

GMC G2500 1979-84, K1500 1979-84, C1500 1979-84, K2500 1979-84, Jimmy 1970-82, C3500 1979-84, K2500 Suburban 1979-82, 1984, K3500 1979-84, C15/C1500 Pickup 1967-74, C2500 1979-84, K1500 Suburban 1979-80, G25/G2500 Van 1967-74 + 112 more models

Prop 65

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

Material

Multi-layer Steel

Easy

Great job

Ordering went extremely smooth

Good so far

My initial review was 1 star because I ordered a Thule rooftop cargo box, but cancelled the order after Autoplicity called me about collecting extra money to ship the item after their website did not charge me enough for shipping. After my initial review Autoplicity offered to ship the item totally free since the issue was a flaw in their website. This was unexpected, above and beyond in my opinion. I have yet to receive the item but commend Autoplicity's customer service

Awesome Products!

Great price

Excellent service. I called in Monday for a hard to find item which I had ordered from several other online shops who despite saying were In Stock online were not actually in stock at all and the orders were canceled after waiting a week to find out. They had the item in stock as listed on their website and shipped the next day. The price was the cheapest of anyone who actually had the item in stock by a substantial amount.

Autoplicity has some of best prices around and also ships extremely. Their customer service staff, either online or on the phone is also easily reachable and helpful!

Just placed order; seems ok so far

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