Cometic 1994-00 Mazda Miata 1.8L DOHC MLS Head Gasket & ARP STUD Kit Package

Cometic MLS Head Gasket and ARP Head Stud Kit Combo Package 
For 1994-2000 Mazda Miata with 1.8L DOHC Engine

Cometic multi-layer steel (MLS) head gaskets for the '94-'00 Miata 1.8L DOHC "BP" engines are comprised of three layers of stainless steel. Cometic uses stainless steel for increased strength, it's ability to rebound, and improved corrosion resistance. The outer layers of the gasket are embossed and coated on both sides with Viton rubber to meet the demands of a variety of harsh sealing environments, load conditions and surface finishes.

Cometic's Viton coating is heat resistant to 250°C or 482°F. By design the MLS gasket promotes an even torque across the sealing surface allowing for measurable reduced bore distortion.

Thickness: .040" (1.0mm)

** This item is a 83mm head gasket. The factory OE bore size is 83mm. This should not be used on engines that are overboring to 83.5mm, 84mm etc**

Obtaining the optimum cylinder head-to-block sealing is especially critical in small displacement engines employing high compression pistons or power adders like turbochargers, nitrous oxide and superchargers. That's why ARP head studs are popular among leading Sport Compact/Import racers.

You should know that ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then, each stud is precisely heat-treated to 200,000 psi. Following heattreat, each stud is centerless ground to make it as close to perfectly concentric as possible. This procedure involves about ten very slight cuts and results in an exceptionally straight part. It's important to note that lesser quality studs are not even centerless ground—the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned—something that won't happen with inferior quality head studs.

ARP studs are thread rolled after heat-treat, which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat.

Prevent blown head gaskets and ensure optimum sealing!

Keep your engine tough with ARP Fasteners!!
Each kit includes ARP Studs, ARP Washers, ARP nuts and Assembly Lube