Speed Pro Performance Piston Rings - 4.000 in Bore - Drop In - 5/64 x 5/64 x 3/16 in Thick - Standard Tension - Moly - 8-Cylinder E377K 93521 2-3/4 in to 2-1/2 in

2-3/4 in to 2-1/2 in ID

Fittings fit in a 5/8" hole and are sold in a pack of 2

302-2 is designed to use a GM F-body windage tray

Supports up to 480 horsepower

Speed Pro Performance Piston Rings - 4.000 in Bore - Drop In - 5/64 x 5/64 x 3/16 in Thick - Standard Tension - Moly - 8-Cylinder E377K 93521 2-3/4 in to 2-1/2 inProduct Description: Piston Rings Performance 4. 000 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