Competition Products "Pro-Alloy" Roller Valve Spring Package (1.550" Dia.) Specially developed low stress, high endurance mechanical roller valve springs for up to .750" lift. Install height is 1.880" giving you 230 lbs. of seat pressure and 550 lbs. open. Includes #98643 Howards "Pro-Alloy" springs, #3800 10 degree chrome moly retainers and #4413 11/32" 10 degree VTO "forged" steel locks (single groove). Free VTO Seals!
Valve Spring Part Number: 98643 Spring Style: Dual Spring Diameter: 1.540 Seat Press: 130 @ 1.880 Open Press: 550 @ 1.250 Max Lift: .750 Spring Quantity: Set of 16 Retainer Part Number: 3808 Retainer Material: Chrome Moly Steel Retainer Quantity: Set of 16 Valve Lock Part Number: 4413 Valve Lock Degree: 10 Degree Valve Lock Material: Alloy Steel Valve Lock Quantity: Set of 32 (16 Pair) Valve Stem Seals: Included Valve Stem Seal Type: VTO Ultimate Duty Manufacturer: Competition Products Manufacturer's Part Number: VSA9-32 Packaged Weight: Warranty: Race Application, No warranty expressed or implied Quantity: Sold as Kit
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