Proform GM LS Valve Covers - Slant Edge - Polished Brake Pads They use standard small-block pistons

They use standard small-block pistons

JMS has become an industry leader in automotive electronics

The cap is injection molded from DuPont Rynite material

Ideal for vehicles with late model engine swaps and applications where conventional tachometer signals are not available

LSTC1 tool is slightly more accurate than the LSTC2 tool since the rubber seal in the cover is a little more flexible

Proform GM LS Valve Covers - Slant Edge - Polished Brake Pads They use standard small-block pistonsProform GM LS Valve Covers Slant Edge Polished 141 266 Cast Aluminum Valve Cover Chrome No Logo Small Block Chevrolet LS (Set of 2) PROFORM invites racers to experience the strength, innovation, and power behind the PROFORM brand. PROFORM Parts (Specialty Auto Parts U. S. A., Inc.) is a leader in the High Performance Automotive Aftermarket by engineering and manufacturing creative products from intelligent concepts. Our goal is to provide the