COMP Cams K51-751-11 Magnum 243/243 Solid Roller Complete K-Kit for Pontiac 265-455

The COMP Cams K51-751-11 is a complete Magnum Series solid roller camshaft K-Kit engineered for Pontiac 265-455 cubic inch V8 engines. Designed for serious street/strip performance, this kit delivers a broad power band with a choppy, aggressive idle character that enthusiasts demand. With 0.550" valve lift on both intake and exhaust and a wide operating RPM range of 2,200–6,500 RPM, this setup is built for high-compression builds requiring headers, lower rear-end gears, and a 3,000+ RPM stall converter.

Camshaft Specifications:

• Grind Number: 288R
• Cam Type: Solid (Mechanical) Roller
• Usage: Street/Strip
• Advertised Intake/Exhaust Duration: 288°/288°
• Duration at .050" Lift (Intake/Exhaust): 244°/244°
• Intake Valve Lift: 0.550"
• Exhaust Valve Lift: 0.550"
• Lobe Separation Angle: 110°
• Basic Operating RPM Range: 2,200–6,500
• Camshaft Gear Attachment: 1-Bolt
• Camshaft Material: Billet Steel
• Computer-Controlled Compatible: No

Complete K-Kit Includes:

• Billet steel solid roller camshaft
• Roller lifters
• Valve springs
• Retainers
• Valve locks (keepers)
• Valve stem seals
• Timing chain set
• Decals and installation instructions

The Magnum series is COMP Cams' flagship mechanical roller profile, engineered to maximize top-end power while retaining street drivability. The billet steel core ensures durability under sustained high-RPM operation. This K-Kit provides everything needed for a complete valvetrain upgrade in a single part number, making it ideal for Pontiac GTO, Firebird, Trans Am, Grand Prix, and other Pontiac V8-powered builds. Note: This application requires increased compression, headers, lower gears, and a 3,000+ RPM stall converter for optimal performance.