Speed Pro Economy Piston Rings 4.310" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Iron Gauges & Data Acquisition Holley EFI These exclusive features are what

These exclusive features are what make the Ferrea Competition Plus Valves unequaled in performance and reliability

Includes carb stud & wing nut

Internal Hydraulic Clutch

Individual Plates

Increased psi Rating

Speed Pro Economy Piston Rings 4.310" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Iron Gauges & Data Acquisition Holley EFI These exclusive features are whatProduct Description: Piston Rings Economy 4. 310 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