Ferrea 6000 Series Exhaust Valve - 1.600 in Head - 11/32 in Valve Stem - 5.010 in Long - Small Block Chevy - Set of 8 F6104-8 AN O-Ring Plugs 3/8-16 & 5/16-18 SAE threads

3/8-16 & 5/16-18 SAE threads

180 Degree Crossover

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This model is not locking

Ferrea 6000 Series Exhaust Valve - 1.600 in Head - 11/32 in Valve Stem - 5.010 in Long - Small Block Chevy - Set of 8 F6104-8 AN O-Ring Plugs 3/8-16 & 5/16-18 SAE threadsThe 6000 Series Competition Valves are designed to provide excellent reliability in an environment of high spring pressures and roller cams, at a budget price. They have higher fatigue resistance and tensile strengths than our competitor's best offerings. These valves can be used in Drag and Oval Track racing applications. To manufacture the valves Ferrea uses an exclusive two step slow forging process using EV8 stainless steel on both intake and