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Mr. Gasket Ultra-Seal Valve Cover Gaskets

Fits 1969-1982 Ford 302 Boss/351C/351M/400. Also fits Yates NASCAR heads.

PART# 5871

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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

ApplicationSmall Block Ford
BrandMr. Gasket
Emission Code5
EngineFord Boss 302
Ford Cleveland
Ford Modified
PackagingRetail - Skin Pack
Product TypeValve Cover Gaskets
Valve Cover Gasket MaterialUltra Seal
Valve Cover Gasket Thickness.187"
WarrantyLimited 90 Day
Weight0.5000
Part Number5871

Emissions

5

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.

Tech Resources

351-C; 351C-2V; 351C-4V; 351 Cleveland; Cleveland; 351-M; 351 Modified; 351 Midland;

Warranty Information

Limited 90 Day: See Details

Applications

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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.