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Our Competition Series Valves feature 21-4N stainless alloy
Weight balanced + or - 1
Ni: Chrome
Engine Pro Performance Nitro Black Valves 01-3001-100 Specifications
Hardened 1020 backing material with greater fatigue strength to handle higher thrust loads
Engine Pro Performance Super Clean Street/Race Valve Springs 02-1300-16 Our Competition Series Valves featureEngine Pro Performance Super Clean Street Race Valve Springs 02 1300 16 Specifications Outer Spring O. D.: 1. 450 Outer Spring I. D.: 1. 060 Inner Spring I. D.: 0. 790 Closed Height: 1. 900 Closed Load: 140 Open Height: 1. 300 Open Load: 358 Coil Bind: 1. 120 Max. Lift: . 650 Rate: 363 Material Type (Cr, Si, V, Ni: Chrome, Silicon, Vanadium, Nickel): Cr Si Damper (N = No, Y = Yes): N Steel Retainer Number: 03 1003 Titanium Retainer Number: n a Applies