Ferrea 6000 Series Competition Intake Valve - SB Chevy - 2.020", 11/32" Stem Diameter, 5.060" Overall Length - (Set of 8) 28900BK Trick gasketed vacuum secondary diaphragms

Trick gasketed vacuum secondary diaphragms

Applications include off-road brake

300" of shims under the spring

Weld and Real

used for P/N 12301

Ferrea 6000 Series Competition Intake Valve - SB Chevy - 2.020", 11/32" Stem Diameter, 5.060" Overall Length - (Set of 8) 28900BK Trick gasketed vacuum secondary diaphragmsThe 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