Competiton Products Severe Application Competition Valves Premium grade annealed 21-4N. Deep hard chrome plated stems. Hardened to 55 r.c. to withstand the toughest roller-tip punishment. Every valve made is hardness checked. Chrome plated, ground and polished to exact tolerances. Lowest possible weight without sacrificing strength. Ultimate tensile strength, 75,400 p.s.i. at 1,382°F. Yield strength 46,500 p.s.i. at 1,382°F. Valves have a slight undercut (.020"-.040"). Computer designed for severe application. Designed for Severe Competition Use One Piece 21-4N Stainless Steel Forging Deep Hard Chrome Stems Undercut for Increased Flow Hard tips Swirl polished Fully Machined
Part Type: Intake Valves Style: Competition Products Severe Application Competition Valves Application: Chevrolet Big Block V8 Head Diameter: 2.300" Stem Diameter: 11/32" (.3415") Installed Height: Standard Overall Length: 5.244" Material: 21-4N Stainless Steel 1-Piece Design: Yes Hard Chrome Stems: Yes Undercut Stem: No Black Nitrided: No Swirl Polished: Yes Lock Groove Type: Conventional Lock Groove Quantity: Single Tip Length: .250" Under Head Angle: 12 Degrees Under Head Radius: .375" Margin: .060" Seat Width: .100" Top of Head: 7 Degree Dish Weight: 95 grams Manufacturer: Competition Products Manufacturer's Part Number: CMP23010 Weight: 0.25 lbs. Warranty: Race Application, No warranty expressed or implied. Quantity: Sold as Each
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