Speed Pro Premium Piston Rings 3.950" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly 4704021-20-L 1986-1995 Ford F-150

1986-1995 Ford F-150

The key to making excellent torque and horsepower comes from using the smallest port for a given amount of airflow and then matching the correct port size to the airflow requirements of your application

Winch Accessory Kit

Part Number: 134-348

Speed Pro Premium Piston Rings 3.950" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly 4704021-20-L 1986-1995 Ford F-150Product Description: Piston Rings Performance 3. 950 in Bore Drop In 5 64 x 5 64 x 3 16 in Thick Standard Tension Steel Moly 8 Cylinder From pistons to engine bearing components, Speed Pro offers an array of performance engine parts. You can rely on Speed Pro for industry leading performance engine technologies, from cutting edge Digital Diamond Profiled pistons to A Series bearings. They are engine components performance enthusiasts and racers can