Ferrea Competition Plus Hollow Stem 1.600" Exhaust Valves (Set of 8) - SB Chevy - 11/32" Stem Diameter - 4.960" Length DX2800K Evacuation hoses not included

Evacuation hoses not included

Included is our 3200 rpm governor spring to extend the engine rev range by and 700 rpm

cornering and overall control

Compatible with many other types of remote mounted racing water pumps

and a deep aggressive rumble

Ferrea Competition Plus Hollow Stem 1.600" Exhaust Valves (Set of 8) - SB Chevy - 11/32" Stem Diameter - 4.960" Length DX2800K Evacuation hoses not includedAn 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