Ferrea 6000 Series Exhaust Valve - 1.600 in Head - 11/32 in Valve Stem - 5.010 in Long - Small Block Chevy - Set of 8 F6145-8 Distributor Rotor Base you can increase the size

you can increase the size of the lead in chamfer with a chamfer tool

Standard Motor Products SMP Uf-198

Meets NSRA Safety Requirements

8 Bolt - Ford - Black w/Perfect Launch Logo

94mm Gasket Bore

Ferrea 6000 Series Exhaust Valve - 1.600 in Head - 11/32 in Valve Stem - 5.010 in Long - Small Block Chevy - Set of 8 F6145-8 Distributor Rotor Base you can increase the sizeThe 6000 Series Competition Valves are designed to provide excellent reliability in an environment of high spring pressures and roller cams, at a budget price. They have higher fatigue resistance and tensile strengths than our competitor's best offerings. These valves can be used in Drag and Oval Track racing applications. To manufacture the valves Ferrea uses an exclusive two step slow forging process using EV8 stainless steel on both intake and