Engines and Components› Engine Covers, Pans and Dress-Up Components

Mr. Gasket

U/S OH GSKT KT

$270.50

SKU: M00S 5991

In Stock
In Stock
Ships by Jun 8
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Mr. Gasket 5991 is an Ultra Seal Performance Overhaul Gasket Kit designed for a wide range of Chevrolet and GMC vehicles from 1957 to 1985. This kit contains essential gaskets for cylinder heads, intake, exhaust, valve covers, and oil pans.

Constructed from alloy steel, these gaskets offer excellent resilience, high-temperature endurance, and resistance to corrosion. They feature an elastomer coating and a reinforced steel core for increased tensile strength, allowing them to conform to warped flanges for a superior seal without deteriorating. These gaskets do not require re-torquing.

Fitment

Fitment Guaranteed

Don’t gamble
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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

BrandMr. Gasket
Part NumberM00S 5991

Videos

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Percy's High Performance

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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.

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