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Mr. Gasket Ultra-Seal Valve Cover Gaskets

Fits 1959-1980 Chrysler 361,383,400,413,426,440 B/RB Big Block except 426 Hemi

PART# 5877

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Overview

Ultra-Seal is Mr. Gasket's premium valve cover gasket material. It's manufactured from a high density cork and rubber blend with a black latex coat applied to the outside to help seal minor flange irregularites and eliminate oil leakage. It creates a positive seal by controlled swelling of the gasket material when exposed to hot oil. For OE replacement, high performance street, drag race and oval track use. Sold as a pair, these gaskets are .187" thick.

Features:

  • Manufactured from high-density cork /rubber blend gasket material
  • A black latex rubber coating is applied to outside of gasket to help seal minor flange irregularities and eliminate the possibility of oil leakage
  • Creates a positive seal by controlled swelling of the gasket material when exposed to hot engine oil
  • For OE replacement, high performance street, drag race and oval track
  • .187" thick

Specs

ApplicationBig Block Chrysler
BrandMr. Gasket
Emission Code5
EngineChrysler Big Block B/RB
PackagingRetail - Skin Pack
Product TypeValve Cover Gaskets
Valve Cover Gasket MaterialUltra Seal
Valve Cover Gasket Thickness.187"
Weight0.4500
Part Number5877

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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        *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

        Some parts are not legal for use in California or other states with similar regulations.