FERREA HOLLOW STEM SBC EXHAUST VALVES 1012

Ferrea  Competition Hollow stem Exhaust Valve, 1.600 in Head, 11/32 in Valve Stem, 5.010 in + .100 Long, Stainless Steel, 24 degree Flo, Applications Small Block Chevy flat tappet, hydraulic and solid roller cam shafts, Set of 8. One important factor to take into consideration to increase the engine’s rpm’s, is the valve train weight. Of course, being the valve a main component, the design has to be perfected to accomplish the weight reduction to allow higher rpm’s. Ferrea’s latest contribution in this area is our Lightweight Hollow Stem Valves. We developed a proprietary manufacturing process that gun drills and micro polishes the bore of a valve stem. This proprietary process insures greater structural integrity than any hollow valve on the market today. This achieves a valve reduction in weight of approximately 20 percent compared to a conventional stainless steel solid stem valve. The valves also feature friction welded tips, radial grooves, avionics chrome plated stems, seat hardness up to 42HRc and Super Flo designs to improve flow.

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