Allstar Performance Positive Stop Valve Stem Seal - 3/8 in Valve Stem - 0.620 in OD - 0.531 in Guide OD - PTFE - Set of 100 H759001XXL VSC (Variable Speed Controller) With

VSC (Variable Speed Controller) With our VSC (included with bundle) the MAC Air’s flow can be easily toggled between off

20-120 psi

This seal is installed in the torque tube to prevent the rear end lube from traveling up the torque tube leaking out the bell

Small Block Ford cylinder head offers high horsepower potential on competition level engines and are compatible with OE valve train and pistons for bolt-on convenience

Allstar Performance Positive Stop Valve Stem Seal - 3/8 in Valve Stem - 0.620 in OD - 0.531 in Guide OD - PTFE - Set of 100 H759001XXL VSC (Variable Speed Controller) WithSeals have spring loaded wipers for maximum oil control. Machining is required for most installations. Set of 100. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the quality, affordable and practical items available from Allstar Performance. Product