Gaskets and Seals› Engine Gaskets and Seals

Cometic

MLS Head Gasket, 4.155" Bore, 0.051" Thick

$212.23

SKU: C4155-051

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Overview

The Cometic PRO1025T-4155-051 is a top-end gasket kit designed for GM LSX Gen-4 Small Block V8 engines. This kit features a Multi-Layer Steel (MLS) cylinder head gasket with a 4.155-inch bore and a 0.051-inch thickness.
Show original supplier description
The Cometic PRO1025T-4155-051 is a comprehensive top-end gasket kit engineered specifically for GM LSX Gen-4 Small Block V8 engines. This kit includes a high-performance Multi-Layer Steel (MLS) cylinder head gasket, characterized by its 4.155-inch bore and a precise 0.051-inch thickness, ensuring a reliable seal under demanding conditions. Constructed from advanced materials, this gasket kit is built to withstand the rigors of high-performance engines. The MLS design provides excellent sealing capabilities, making it suitable for applications where durability and performance are paramount. Cometic gaskets are known for their innovative design and manufacturing, aimed at maximizing engine power and performance. The PRO1025T-4155-051 kit reflects this commitment to quality, offering a direct replacement solution for critical engine sealing components. Production of these gaskets is typically handled to order, with an estimated production time of 2-3 weeks, followed by standard shipping times.

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

BrandCometic
Part NumberC4155-051
CategoryGaskets and Seals
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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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