Ferrea 6000 Series Competition Exhaust Valve - SB Chevy - 1.600", 11/32" Stem Diameter, 5.060" Overall Length - (Set of 8) 4101XXSBK PERFORMER RPM VORTEC (1500-6500 RPM)

PERFORMER RPM VORTEC (1500-6500 RPM) Based on the powerful Edelbrock #7101

The Centerforce ® II Clutch Series utilizes a full facing disc with premium friction materials and a pressure plate with patented centrifugal weights (where applicable)

2013-2013 Infiniti JX35

The Comp Series is the real deal with rotary forged centers for incredible strength and precision CNC spun outer rims for unrivaled trueness

1" Drop Front

Ferrea 6000 Series Competition Exhaust Valve - SB Chevy - 1.600", 11/32" Stem Diameter, 5.060" Overall Length - (Set of 8) 4101XXSBK PERFORMER RPM VORTEC (1500-6500 RPM)The 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