Ferrea Competition Plus Hollow Stem Valves - Head Size: 2.080" - Stem Diameter: 11/32" - Overall Length: 5.060" - 12 Super Flo, Radial Groove - Special Alloy. +.150 9410D Handmade Cross Form Design

Handmade Cross Form Design

Developed with E85 in mind

2-1/2 in Tailpipe

is constructed from high-quality linear low-density polyethylene (LLDPE) that is impact resistant

Widely used in Grand National type stock cars

Ferrea Competition Plus Hollow Stem Valves - Head Size: 2.080" - Stem Diameter: 11/32" - Overall Length: 5.060" - 12 Super Flo, Radial Groove - Special Alloy. +.150 9410D Handmade Cross Form DesignAn 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