Speed Pro Premium Piston Rings 4.270" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly Exhaust Port Blockoff Valve Seals: 11/32

Valve Seals: 11/32

Absorbs Excessive Noise

BEAUTIFUL CHROME FINISH LOOKS GREAT UNDER THE HOOD

For use with Full Sweep and Short Sweep Electric gauges only

Improved throttle response for 60 feet times

Speed Pro Premium Piston Rings 4.270" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly Exhaust Port Blockoff Valve Seals: 11/32Product Description: Piston Rings Performance 4. 270 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