Cometic C15741-071 DST Head Gasket 0.071 4.150 Bore for GM LS 4-Bolt V8

Regular price: $263.95
Regular price: ~~$313.95~~
Sale price: $263.95

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Product Specification:

SKU:CGSC15741-071

UPC: 191070590536

Weight: 0.5 lb

Inventory: 8

Type: Head Gaskets

Vehicle Fitment

GM LS Series V8 Engines (Gen III / Gen IV platforms)
4.8L / 5.3L / 5.7L / 6.0L / 6.2L LS-based engines (4-bolt configurations)
LS swap applications using 4-bolt cylinder head setups
Performance crate engines built on LS architecture

Fitment Notes

Designed specifically for GM LS-series 4-bolt head configurations
Not compatible with Chrysler HEMI, Ford Coyote, or BMW/Toyota engines
Requires properly machined deck surfaces for MLS sealing performance
Intended for high-performance, turbocharged, or supercharged builds

Features

DST (Dual Stopper Technology) for enhanced combustion sealing under high boost
7-layer multi-layer steel construction for maximum durability
0.071" compressed thickness for compression ratio tuning flexibility
4.150" bore size optimized for LS performance applications
Stopper layer design improves clamp load distribution across cylinders
Viton-coated outer layers resist heat, oil, and coolant exposure
Reduces bore distortion under high cylinder pressure
Direct bolt-on MLS replacement requiring no O-ring modification

Specifications

Material: Multi-Layer Steel (DST / MLX 7-layer construction)
Compressed Thickness: 0.071 inch
Bore Size: 4.150 inch
Orientation: LS 4-bolt configuration
Engine Compatibility: GM LS Series V8 platforms
Position: Cylinder head gasket

Included Components

1x DST Head Gasket (LS 4-bolt application)

Product Description

The Cometic C15741-071 DST Head Gasket is engineered for GM LS-series 4-bolt V8 engines and is designed for high-performance sealing under extreme cylinder pressure. Built using Cometic's Dual Stopper Technology (DST), it provides improved combustion sealing stability compared to traditional MLS gaskets, making it ideal for turbocharged, supercharged, and high-compression LS builds.

With a 0.071-inch compressed thickness and 4.150-inch bore, this gasket allows precise tuning of compression ratio while maintaining strong sealing integrity. The multi-layer steel construction with integrated stopper design helps distribute clamping force evenly, reducing bore distortion and improving long-term reliability in demanding performance environments.

This gasket is intended for properly machined LS engine surfaces and is commonly used in both street performance and race applications. It delivers a direct-fit sealing upgrade for builders seeking maximum durability and consistent sealing under high load conditions.