Product Information
Cometic MLS Custom Head Gaskets are comprised of three layers of stainless steel. Cometic uses Stainless Steel for added strength , it's ability to rebound and it's natural resistance to corrosion. They're constructed of 3-5 layers, the outer layers being .010 embossed stainless with a Viton Coating on both sides giving each layer a finish thickness of .010 and the inner core being of a variable thickness of flat Stainless to achieve the desired compressed thickness from .055 to .070. This unique construction allows you to fine tune your Compression Ratio, Valve to Piston or Piston to Cylinder Head clearances to exacting tolerances. The Viton Rubber Coating or in technical terms, Flouroelastomer Rubber Based Material will easily handle temperatures from 250 to 480*F. The composition of these gaskets along with the interlocking embossments create unsurpassed sealing properties making Cometic MLS Head Gaskets the ultimate choice for today's all Aluminum, Aluminum heads to Steel block and the traditional Steel on Steel engines. Aluminum expands and contracts 1.7 times faster than steel, this causes tremendous shearing forces between the Aluminum head and the steel block attacking the structure of the gasket, trying to actually rip the gasket apart as the temperatures move up and down. In the past Copper O-ring gaskets were the solution to big power on multi material engines, today we achieve superb sealing and longevity that is unheard of even with the traditional Copper Gaskets and especially composite gasket materials. These gaskets will not work harden, they will not push between cylinders like a convention composite gasket and if installed and handled correctly they can be re-used. The unique design and the properties of the Stainless Steel material promotes even loading for a superior seal, reduced brindling in the head and reduced bore distortion. Copper gaskets are prone to work hardening in stressed areas causing hard spots and uneven tork loads which will eventually cause distortion of the bores and the cylinder head itself, these issues are resolved with the Cometic MLS Head Gaskets. Good machining is critical in achieving a proper seal when using a Cometic MLS gasket a recommended, a 50RA finish is recommended, any quality machine shop can achieve this finish quality and it shouldn't cost any extra.
Perfect for all Naturally Aspirated, Supercharged, Turbo Charged and Nitrous Motors.
Stock gasket thickness for the 3100 is .060. These gaskets have a bore size of 3.622" which will accomodate any overbore that can be safely done to the 3100.
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Price: $138.99
