Gaskets and Seals Engine Gaskets and Seals

Cometic Gasket

Cometic GM LS1 SB 4.100in Bore .056in MLS Head Gasket

$324.49

SKU: C006 C5489-056

In Stock
In Stock
Ships by Jun 11
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Cometic C5489-056 is a Multi-Layer Steel (MLS) head gasket designed for GM LS Gen-3/4 Small Block V8 engines. It features a bore size of 4.100 inches and a compressed thickness of 0.056 inches. The gasket is constructed with five layers of stainless steel for increased strength and rebound capability.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandCometic Gasket
Part NumberC006 C5489-056

Buy with Confidence

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.

View Full Return Policy