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Maximum open spring pressure 800 lbs
Nickel): Cr-Si-V-Ni
Dimension C: Beehive
Ford Big Block
Upper Thread Diameter: 7/16"
Engine Pro Performance Stainless Valves 01-1003 Maximum open spring pressure 800Engine Pro Performance Stainless Valves 01 1003 Specifications Type Int Head Diameter 2. 020 Stem Diameter 11 32" Installed Height Stock Overall Length 4. 910 Tip Length . 250 Other Info 10 Undercut, Dish Head Applies to: Chevrolet Small Block Description: Out perform the competition with these superior stainless one piece valves. Our Competition Series Valves feature 21 4N stainless alloy, hard wafer tip, chromed stem, full undercut and swirl