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Cometic C5986-051 GM LS9 4.100in .051in MLX LHS Head Gasket 09-13
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Cometic 09+ GM LS9 4.100in Bore .051 thick MLX LHS Head Gasket

CGSC5986-051
191070029500
Head Gaskets
1 Units In Stock - Ships Next Business Day
$ 125.65 $ 113.09
$ 113.09

SKU: C5986-051 / UPC: 191070029500

Cometic C5986-051 GM LS9 4.100in Bore .051in Thick MLX LHS Head Gasket 2009+ GM LS9 Engine

The Cometic C5986-051 MLX Head Gasket, the unrivaled leader in high-performance sealing solutions. Engineered with cutting-edge Multi-Layer Xtreme (MLX) technology, this head gasket delivers superior sealing, unmatched durability, and optimal performance under the most demanding conditions. Whether you’re pushing your Corvette ZR1 to the limits on the track or enhancing your street build, the Cometic C5986-051 outperforms all other options, making it the definitive choice for enthusiasts and professionals seeking reliability and power.

Why Choose the Cometic C5986-051 MLX Head Gasket?

  • Performance: The MLX design features multiple layers of stainless steel with strategic embossments and a proprietary stopper layer, ensuring a robust seal that handles extreme boost pressures and high horsepower applications without compromise.
  • Durability: Built to withstand the intense heat and pressure of the supercharged 6.2L LS9 engine, this gasket resists blowouts and maintains integrity even in the most aggressive builds.
  • Engineering: With a 4.100-inch bore and 0.051-inch thickness, this gasket is tailored for optimal compression ratios, delivering maximum power output and efficiency.
  • Trusted by Professionals: Cometic’s reputation for excellence makes this gasket the go-to choice for race teams, engine builders, and performance enthusiasts worldwide.
  • Perfect Fitment: Specifically designed for 2009+ GM LS9 engines, ensuring a seamless installation and flawless performance.

What’s Included in Your Purchase?

  • Part Number: C5986-051
  • UPC: 191070029500
  • Product: One (1) Cometic MLX Left-Hand Side (LHS) Head Gasket
  • Specifications:
    • Bore Size: 4.100 inches
    • Thickness: 0.051 inches
    • Material: Multi-Layer Xtreme (MLX) stainless steel with stopper layer
    • Side: Left-Hand Side (LHS) specific
  • Packaging: Securely packaged to ensure safe delivery, complete with Cometic’s quality assurance.

Vehicle Fitment

The Cometic C5986-051 MLX Head Gasket is precision-engineered for the following vehicles equipped with the GM LS9 6.2L supercharged V8 engine:

  • Chevrolet Corvette ZR1:
    • Years: 2009–2013
    • Make: Chevrolet
    • Model: Corvette ZR1
    • Engine: 6.2L LS9 Supercharged V8

Other Applications: Compatible with custom builds or engine swaps using the GM LS9 engine (verify bore size and engine specifications for fitment).

Why It’s the Best Choice for Customers

Unlike standard head gaskets, the Cometic C5986-051 MLX Head Gasket is designed to excel in high-performance environments. Its advanced MLX construction provides a superior seal compared to competitors, preventing leaks and ensuring consistent performance under extreme conditions. The 0.051-inch thickness allows for fine-tuned compression ratios, optimizing power for street or track use. Backed by Cometic’s industry-leading reputation, this gasket offers peace of mind and proven results, making it the top choice for LS9 owners looking to maximize their engine’s potential.

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