COMP Cams 26903-1 Single Valve Spring 1.404" OD 300 lb/in Hydraulic Flat Tappet

The COMP Cams 26903-1 is a single valve spring engineered for hydraulic flat tappet camshaft applications. Featuring a 1.404" outer diameter and a 300 lb/in spring rate, this spring fits a wide variety of early cylinder heads and offers installation flexibility across a range of installed heights.

Key Specifications:

• Spring Style: Single (with damper)
• Outside Diameter: 1.404 in.
• Installed Height: 1.650 in. (compatible range: 1.500" – 1.700")
• Spring Rate: 300 lb/in
• Maximum Valve Lift: 0.550 in.
• Seat Load: 95 lbs @ 1.650 in.
• Open Load: 260 lbs @ 1.100 in.
• Coil Bind Height: 1.033 in.
• Coil Bind Clearance: Approximately 0.065" from bind at max lift
• Quantity: 1 spring

Designed for street and performance hydraulic flat tappet applications, the 26903 spring fits numerous spring pockets thanks to its versatile 1.404" outer diameter. The 260 lb open load provides safe, reliable operation while ensuring proper valve control throughout the RPM range. This listing is for a single spring; multi-spring sets are also available in this series (26903-12, 26903-16).

COMP Cams valve springs are manufactured using premium wire and advanced production techniques, delivering consistent spring pressures and long-term durability for demanding performance builds.