COMP CAMS K31-600-9 COMP Cams K31-600-9 SBF Thumpr Hydraulic Roller Camshaft, Lifter, Spring and Timing Kit

Upgrade a Small Block Ford engine with the COMP Cams K31-600-9 Thumpr K-Kit, a matched performance package designed for enthusiasts seeking an aggressive camshaft profile and a complete valvetrain solution. This kit combines a Thumpr hydraulic roller camshaft with compatible lifters, valve springs, and timing components to simplify installation and support reliable performance from a coordinated set of components.
The camshaft features 0.531-inch intake lift and 0.515-inch exhaust lift, with listed duration figures of 283 degrees on the intake and 303 degrees on the exhaust. Its 107-degree lobe separation angle is designed to provide the distinctive Thumpr sound and performance character associated with a more aggressive camshaft profile. The recommended operating range is 1,900 to 5,600 rpm, making this kit suitable for street performance applications and engines that regularly operate across a broad rpm range.
Designed specifically for Small Block Ford applications, the COMP Cams K31-600-9 helps streamline the process of upgrading the camshaft and related valvetrain components. The hydraulic roller configuration supports consistent valve action while reducing the need for routine lash adjustments compared with solid-lifter designs. As with any camshaft installation, verify engine compatibility, cylinder head clearance, piston-to-valve clearance, spring specifications, and timing requirements before assembly. Professional installation and careful setup are recommended to help achieve the intended performance and durability.

Features:

• Brand: COMP Cams

• Part Number: K31-600-9

• Application: Small Block Ford engines

• Kit Contents: Camshaft, hydraulic roller lifters, valve springs, and timing set

• Camshaft Type: Thumpr hydraulic roller

• Intake Lift: 0.531 inch

• Exhaust Lift: 0.515 inch

• Intake Duration: 283 degrees

• Exhaust Duration: 303 degrees

• Lobe Separation Angle: 107 degrees

• Recommended Operating Range: 1,900 to 5,600 rpm