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21-4N High Strength Stainless Alloy
Application: 273
and sonic tested to ensure they provide the strength required for high horsepower applications
Engine Pro Performance Stainless Valves 01-2202 Specifications
Engine Pro Performance Stainless Valves 01-1002 21-4N High Strength Stainless AlloyEngine Pro Performance Stainless Valves 01 1002 Specifications Type Int Head Diameter 1. 940 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