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Cometic Head Gasket / MAP Ultimate Duty H11 Head Studs Kit (Mitsubishi Evo 8/9)

Cometic Head Gasket / MAP Ultimate Duty H11 Head Studs Kit (Mitsubishi Evo 8/9)

Our price: $299.99

Item Number

MAP EVO-UDHS+Cometic-Studs-Kit

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Cometic Multi-Layer Steel Head Gasket

All cometic head gaskets are 4 layer MLS (multi layer steel). Cometic uses stainless steel for increased strength, it's ablity to rebound and corrision resistance. The outer layers of the gasket are embossed and coated on both sides with a flouroelastomer rubber based material designed to meet the demans of a variety of harsh sealing enviroments, load conditions, and surface finishes. This coating is also heat resistant to 482 degrees F. The shim layers of the head gakset is also stainless steel but is left uncoated and can be varied for a varied thickness. Cometic MLS gaskets are ideal for aluminum or iron surfaces will seal better than any other gasket PERIOD! The head gasket used in this kit is part number C4156-051 and it's an 86mm bore that is .051" thick.

MAP Ultimate Duty H11 Head Studs (7 Bolt DSM & Evolution)

Consider these an insurance policy for your head gasket...

If you're looking to make big power (proven over 1000+whp) but don't like the idea of lifting your cylinder head and replacing head gaskets frequently these are exactly what you need! These studs are manufactured specifically for us by A1 Technologies and utilize an H11 material that is much stronger than the typical 8740 chromoly and yields a tensile strength of 260,000 psi. They are also provisioned with a hex broach on the top of the stud enabling you to install them with the cylinder head on the car if necessary.

What makes these head studs better than the competition?

The dog point feature (shown below) seats the stud in the block and preloads the fastener for an accurate and repeatable torque sequence. We also include the new ARP Ultra Torque assembly lubricant with each set. When it comes to head stud performance properly torquing the studs is paramount and we have made every effort to ensure torque precision and repeatability!