Quarter Master V-Drive 5.5" Pressure Plate R080003YL The oil pump shaft opening

The oil pump shaft opening must be enlarged to a 9/16" diameter

1/4-3/8 mile tracks with slight bank

With a patented orifice metering valve and a lightweight check valve disc these High Energy hydraulic flat lifters for Chevrolet Small/Big Block/348-409 provides quicker response and better performance

Features: Anti-Seize pre-applied to sensor threads

Quarter Master V-Drive 5.5" Pressure Plate R080003YL The oil pump shaft openingGenuine Quarter Master replacement components and accessories ensure top performance. Quarter Master started out as a chassis developer for drag racing. Discovering a critical need in the drag racing world, they soon switched focus to high performance clutches, and have since expanded into bellhousings, flywheels, driveshafts, quick change gears, and starters. Today Quarter Master has earned the respect and loyalty of racers across the country. The