Ultra-Seal is Mr. Gasket 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 original equipment replacement, high performance street, drag race and oval track use. Sold as a pair, these Gaskets are .187 inch thick.

• 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 inch thick

Details:

• Engine: Oldsmobile V8
• Emission Code: 6
• Valve Cover Gasket Material: Ultra Seal
• Valve Cover Gasket Thickness: 0.187
• Warranty: Manufacturer's Limited 90 Day Warranty