Ferrea Competition Plus Hollow Stem 2.020" Intake Valves (Set of 8) - SB Chevy - 11/32" Stem Diameter - 5.010" Length Engine Block Hardware Exhaust note of GM LS6

Exhaust note of GM LS6 cam w/ hydraulic lifters and increased horsepower

Oil Pan Bolts"

Foam Lining

6-Bolt Crank

540" max lift at recommended installed height

Ferrea Competition Plus Hollow Stem 2.020" Intake Valves (Set of 8) - SB Chevy - 11/32" Stem Diameter - 5.010" Length Engine Block Hardware Exhaust note of GM LS6An 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