Ferrea Competition Plus Hollow Stem 2.020" Intake Valves (Set of 8) - SB Chevy - 11/32" Stem Diameter - 4.960" Length H76903FXL R2500 Suburban 1991-1987

R2500 Suburban 1991-1987

Protect wires

2019 Toyota Corolla L

Borgeson steel single needle bearing universal joints will operate smoothly at angles up to 35 Degrees

Ferrea Competition Plus Hollow Stem 2.020" Intake Valves (Set of 8) - SB Chevy - 11/32" Stem Diameter - 4.960" Length H76903FXL R2500 Suburban 1991-1987An important factor to take into consideration to increase the engine's RPMs, is the valve train weight. Of course, the valve being a main component, the design has to be perfected to accomplish the weight reduction to allow higher RPMs. Ferrea's latest contribution to this area is the introduction of its Lightweight Hollow Stem Valve. We developed a manufacturing process that gun drills and micro polishes the stem to achieve a valve reduction in