Race or limited street use. Cams require a larger throttle body, mass air, injectors, exhaust upgrades and requires custom tuning. Automatics need a 3000+ stall. Very rough idle.

Max strip and street cams for centrifugal supercharged or nitrous engines. Large gains in power with larger throttle body, mass air, injectors and exhaust upgrades. Requires lower gears and custom tuning. Use a 2500+ stall. Rough idle.

Hot performance cams with serious horsepower and torque gains. Recommended lower gears, requires custom tuning, larger throttle body, mass air, injectors and exhaust upgrades. Automatics use a 2200+ stall. Features a rough idle.

Serious street effort for supercharged or nitrous applications. Requires custom tuning and lower gears. Automatics will require a 2000+ stall. Mild rough idle.

Street performance with excellent torque in normally aspirated engines. Requires custom tuning. Noticeable idle.

Lincoln: Blackwood 02 - 03 5.4 L Engine, Ford: Mustang 13 - 14 5.8 L Engine, Lincoln: Aviator 03 - 05 4.6 L Engine, Lincoln: Mark VIII 93 - 98 4.6 L Engine, Ford: Mustang 00 - 12 5.4 L Engine, Ford: Mustang 96 - 04 4.6 L Engine, Lincoln: Navigator 99 -...

Street and strip performance. Needs lower gears, exhaust upgrades, larger throttle body and mass air, bigger fuel injectors and a 2200+ stall with automatics. Requires custom tuning. Rough idle.

Serious street effort with maximum power gains in mid to upper RPM. Requires computer modifications and lower gears. Automatic cars need a 2000+ stall. Requires custom tuning. Mild rough idle.

Great street performance featuring excellent torque and horsepower gains with a noticeable idle. Requires custom tuning.

Panoz: AIV Roadster 99 - 00 4.6 L Engine, Qvale: Mangusta 01 - 02 4.6 L Engine, Lincoln: Blackwood 02 - 03 5.4 L Engine, Lincoln: Mark VIII 93 - 98 4.6 L Engine, Ford: Mustang 00 - 12 5.4 L Engine, Ford: Mustang 96 - 04 4.6 L Engine, Lincoln: Navigator...

Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.040". Left Side. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for...

Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.040". Right Side. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for...

COMETIC Water Pump Gaskets are made to meet and exceed OEM quality. Custom materials and thicknesses are available.

COMETIC Front and Rear Main Crank Seals are manufactured from the best materials available and are suited for all types of environments. Each seal meets or exceeds OEM quality.

The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.

The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.

Ford 4.6/5.4L Modular V8 .032in. MLX Cylinder Head Gasket; 94mm Bore; LHS

Ford 4.6/5.4L Modular V8 .052in. MLX Cylinder Head Gasket; 94mm Bore; RHS

Ford 4.6/5.4L Modular V8 .040in. MLX Cylinder Head Gasket; 94mm Bore; RHS

Ford 4.6/5.4L Modular V8 .032in. MLX Cylinder Head Gasket; 94mm Bore; RHS