Speed Pro Economy Piston Rings 4.290" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Iron Master Cylinder If you are looking for

If you are looking for a clutch that's a great step up from your stock set up

775 in Head

There is no contact between seal and crankshaft

Power Band 4500-7600 rpm

Speed Pro Economy Piston Rings 4.290" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Iron Master Cylinder If you are looking forProduct Description: Piston Rings Economy 4. 290 in Bore Drop In 5 64 x 5 64 x 3 16 in Thick Standard Tension Cast Iron Phosphate 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