Xtreme Energy™ Cams
Designed to take advantage of the latest improvements in valve train components and the newest developments in camshaft design. Their aggressive lobe design produces better throttle response and top end horsepower than other cams with the same duration @ .050”, while delivering increased engine vacuum

Magnum™ Cam
These cams are very aggressive, designed for performance oriented vehicles where they will see little street use. Stock components are generally incompatible Changes are needed in rear end gear ratios, headers and the torque converter. Magnum Cams™ are available in two different lifter types:

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COMP Cams

Comp Cams 51-222-4 Xtreme Energy Camshaft 55-81 Pontiac 265-455

Part #: 51-222-4

HYDRAULIC: Excellent response, good mileage, stock converter mild gear.

1955-81 Pontiac 265-455 Xtreme Energy Hyd. Camshaft

Part #: 51-223-4

Comp Cams Xtreme Energy Hydraulic Flat Tappet Camshaft Pontiac 265-455 8 cyl 1955-1981 Good for Street Machines and have a slightly rough idle.

1955-81 Pontiac 265-455 Xtreme Energy Hyd. Camshaft

Part #: 51-224-4

Comp Cams Xtreme Energy Hydraulic Lifter Flat Tappet Camshaft 8cyl 1955-1981 Pontiac It has a very strong mid-range, headers and 2000 stall.

1955-81 Pontiac 265-455 High Energy Hydraulic Camshaft

Part #: 51-232-3

Comp Cams High Energy Hydraulic Flat Tappet Camshaft 8 cyl 1955-1981 Pontiac Good low-end and mid-range torque. Street performance, noticeable idle.

Pontiac 265 - 455ci V8 Magnum Camshaft #51-233-4

Part #: 51-233-4

HYDRAULIC: Fair idle, Good mid-range torque. Can use stock converter. Daily performance use.

Pontiac 265 - 455ci V8 Magnum Camshaft #51-234-4

Part #: 51-234-4

HYDRAULIC: Choppy idle, increased compression advised. Needs 2500 stall and lower gear, use headers.

Pontiac 265 - 455ci V8 Magnum Camshaft #51-240-4

Part #: 51-240-4

HYDRAULIC: Rough idle, performance usage. Increased compression required. Needs 3000 stall and 3.73:1 or 4.30:1 gears.

Pontiac 265 - 455ci V8 Magnum Camshaft #51-241-4

Part #: 51-241-4

HYDRAULIC: Racy idle. Bracket racing cam. Needs 10.5:1 compression and 3500 stall. Low gear ratio.