Sale

Chevrolet

LS1/LS6 MLS Head Gasket 3.910" Bore

$97.76 $60.00 Save $37.76

SKU: 12498544

In Stock
In Stock
Ships by Aug 29
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Chevrolet Performance LS1/LS6 MLS Head Gasket (part number 12498544) is engineered as an OEM replacement for LS1 and LS6 5.7L engines within GM's Gen III and Gen IV LS families. Constructed from multi-layer steel, this head gasket offers durability and reliable sealing. It features a 3.910-inch bore and a compressed thickness of 0.051 inches, designed to provide a precise fit for compatible LS engine applications. These gaskets are sold as a pair, ensuring both cylinder heads are covered for a complete installation. This head gasket set is suitable for LS1 and LS6 engines. While specific year ranges are not explicitly detailed in the product description, it is identified for use with Gen III/Gen IV LS engine types. For optimal installation, it is recommended to use the appropriate head bolts or studs, which are sold separately.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandChevrolet
Part Number12498544
CategoryEngines and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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