Ferrea Competition Plus Hollow Stem 1.600" Exhaust Valves (Set of 8) - SB Chevy - 11/32" Stem Diameter - 4.960" Length 20800K an elastic and Velcro enclosure

an elastic and Velcro enclosure

drop-in mounting orientation with user-adjustable geometry

-20 X 3 in

Fuel hose kit

Ferrea Competition Plus Hollow Stem 1.600" Exhaust Valves (Set of 8) - SB Chevy - 11/32" Stem Diameter - 4.960" Length 20800K an elastic and Velcro enclosureAn 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