Ferrea 6000 Series Competition Intake Valve - SB Chevy - 2.080", 11/32" Stem Diameter, 4.960" Overall Length 52110 Quadrajet M4M Carburetors

Quadrajet M4M Carburetors

1979-1998 GMC K3500

Pro-Select

390 lb/in Spring Rate

Ferrea 6000 Series Competition Intake Valve - SB Chevy - 2.080", 11/32" Stem Diameter, 4.960" Overall Length 52110 Quadrajet M4M CarburetorsThe 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