Michigan Motorsports MLS Multi-Layer Steel Cylinder Head Gasket Pair | Fits LS1, LS6 & 4.8L 5.3L 5.7L LS-Based Engines | Replaces GM #12589226, 3.920" Bore, .051" Thick for Stock Rebuilds and LS Swaps
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Features
- Gasket Specifications: Each cylinder head gasket features a 3.920-inch bore and .051-inch compressed thickness. The dimensions match the supplied specifications for this Michigan Motorsports replacement for GM Part Number 12589226.
- Pair Packaging: This LS1/LS6 Multi-Layer Steel Gasket listing includes two MLS cylinder head gaskets for servicing both cylinder banks. It is the pair variation and should not be confused with the separately available single-gasket option.
- Confirmed LS Fitment: Fits LS1, LS6, and compatible 4.8L, 5.3L, and 5.7L LS-based V8 engines. Confirm the existing gasket dimensions, engine configuration, and OE reference number before installation.
- Multi-Layer Steel Construction: The layered steel design supports cylinder sealing under elevated combustion pressure and operating temperature. These gaskets are manufactured by the same source as the factory version for a factory-style replacement.
- Rebuild And Swap Applications: Suitable for stock engine rebuilds, cylinder-head repairs, LS swaps, and compatible performance builds. The two-gasket package supplies both sides when completing a full top-end service or engine overhaul.
Description
The Michigan Motorsports MM-12589226-Pair includes two MLS cylinder head gaskets for servicing both cylinder banks of compatible LS-based V8 engines. Each gasket features a 3.920-inch bore, .051-inch compressed thickness, and multi-layer steel construction. Designed as a replacement for GM Part Number 12589226, these head gaskets fit LS1, LS6, and compatible 4.8L, 5.3L, and 5.7L LS-based engines. They are manufactured by the same source as the factory version and provide a factory-style replacement for stock rebuilds, LS swaps, engine repairs, and performance builds. The multi-layer steel design is engineered to maintain cylinder sealing under the heat and combustion pressure produced during engine operation. Purchasing the pair provides both head gaskets needed when removing or servicing both cylinder heads.
Brand: Michigan Motorsports
Material: Multi-Layer Steel
Item Thickness: 0.05 inches
Manufacturer: Michigan Motorsports
Number of Items: 1
Brand Name: Michigan Motorsports
Warranty Description: 30 days
Manufacturer: Michigan Motorsports
Number of Items: 1
Model: MM-12589226
Part Number: G8100
Part Interchange Info: 98544
Material Type: Multi-Layer Steel
Item Thickness: 0.05 inches
Frequently asked questions
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