Cometic Cylinder Head Gasket - 4.125 in Bore - 0.045 in Compression Thickness - Mopar V10 20800MK In the mid 80's Boyce

In the mid 80's Boyce developed a complete oval exhaust system for competition use by NASCAR teams

290 in Bore

Diffused 360 degree lens creates smooth all-around illumination

Also for use with the new -4AN Fuel Pressure

Cometic Cylinder Head Gasket - 4.125 in Bore - 0.045 in Compression Thickness - Mopar V10 20800MK In the mid 80's Boyce. 045" MLS Cylinder Head Gasket, 4. 125" Gasket BoreSince 1989, Cometic Gasket has grown into a leading worldwide supplier of custom and short run gaskets for the motorsports industry. Cometic Gasket supplies hi performance gaskets for a variety of motorsports markets. Today, Cometic produces and ships more than 5,000 types of gaskets. Since its inception, Cometic Gasket has been committed to producing superior quality gaskets for the hi performance