Outerwears Pre-Filter Air Filter Wrap 6 x 14-1/2" Oval 6" Tall Top - Polyester 359102 Converts one-piece rear main seal

Converts one-piece rear main seal on 1986 and newer Small Block Chevy blocks to the old style

Wear-coated for a long lifeThe COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development

Housing kit fits the 1978-88 GM intermediate chassis

2MIL Thickness

Outerwears Pre-Filter Air Filter Wrap 6 x 14-1/2" Oval 6" Tall Top - Polyester 359102 Converts one-piece rear main sealOuterwears Pre filters are designed to enhance the efficiency of any performance or exposed air filter. The Pre filter is constructed with a proprietary polyester mesh with uniform micron openings, treated with an optional hydrophobic water repellent process. The mesh is UV resistant, filters debris down to . 005, is shatter proof in freezing temperatures, and resistant to heat up to 450 degrees. The material is puncture resistant and has elasticity