Below is a general manufacturer product group description. Please note the information below is not item specific. Item specifics are above in product details.

With the ever-increasing technology in performance and racing engines; supercharged, turbo charged, nitrous oxide and extreme compression ratios, a demand was created for stronger, more durable engine gaskets. Mr. Gasket, the originator of High Performance Gaskets, has met the challenge and developed performance gaskets in a variety of materials for all applications to meet the sealing demands of these engines. Mr. Gasket engine gaskets are the most advanced, tested and proven in the performance market today and earned the respect of many professional and sportsman racers.
Performance


Manufactured from cellulose/nitrile composition gasket material.
Provides excellent sealing and durability.
Can be trimmed if necessary for modified port applications.
Complete with manifold end seals and distributor gasket.
For OE replacement, high performance street, drag race and oval track use.


Ultra-Seal


Manufactured from cellulose/nitrile composition gasket material.
Provides excellent sealing and durability.
Silicone beading on both sides of each gasket.
Complete with manifold end seals and distributor gasket.
For OE replacement, high performance street, drag race and oval track use.


Ultra-Seal III-The Next Generation


Manufactured from synthetic high-tensile strength and high-temperature gasket material.
Delivers excellent sealing properties for oil, fuel and coolant.
Seals using low flange pressure (clamp force), conforms to and seals imperfections on sealing surfaces.
Can be trimmed if necessary for modified port applications.
Releases easily (no scrapping required). Will not stick to mating surfaces when disassembling engine.
For OE replacement, high performance street, drag race and oval track use.