Crower Pontiac 287-455 Hot-street Beast Hydraulic Cam (278-h)

Pontiac Hydraulic Flat Tappet Camshaft

Engine Make: Pontiac

Year: 1955-1981

Part Class: Camshaft

Camshaft Name: Power Beast

Camshaft Series: Beast

Engine Type: V8

Engine Size: 287, 301, 316, 341, 350, 370, 389, 400, 421 & 455

Product Type: Hydraulic Flat Tappet

Valve Lash: .000" intake and .000" exhaust

Lobe center: 112

Advertised Duration: Intake / Exhaust: 278 / 289

Duration @ .050" Lift: Intake / Exhaust: 221 / 229

Lobe Lift: Intake / Exhaust: .303 / .313

Rocker Ratio: Intake / Exhaust: 1.5 / 1.5

Gross Valve Lift: Intake / Exhaust: .455 / .470

CID: 421

Performance Level: 4

Low RPM: 2000

Peak HP: 4800

Redline: 6200

Performance Description: Upper mid-range to top end power. Emphasis on top end.

Engine Application: Level 4 camshafts are designed for heavily modified engines. They have a definate lope at idle and are best suited for dual purpose hot street/drag strip, hot marine and oval track applications.

Recommended Modifications: Headers, dual exhaust, large cfm carburetor, performance ignition and increased compression of 10.25:1 and above is required. Cylinder head modifications would be beneficial. Use with automatic transmission with high stall torque converter or manual transmission. Close attention to proper ring and pinion gear set and tire diameter is imperative.

Product Characteristics: Definate lope at idle. These grinds exhibit strong mid-range to top end toque and horsepower.

CID #2: 455

Performance Level 2: 4

Low RPM #2: 2000

Peak HP #2: 4800

Redline #2: 6200

Performance Description 2: Upper mid-range to top end power. Emphasis on top end.

Engine Application 2: Level 4 camshafts are designed for heavily modified engines. They have a definate lope at idle and are best suited for dual purpose hot street/drag strip, hot marine and oval track applications.

Recommended Modifications 2: Headers, dual exhaust, large cfm carburetor, performance ignition and increased compression of 10.25:1 and above is required. Cylinder head modifications would be beneficial. Use with automatic transmission with high stall torque converter or manual transmission. Close attention to proper ring and pinion gear set and tire diameter is imperative.

Product Characteristics 2: Definate lope at idle. These grinds exhibit strong mid-range to top end toque and horsepower.

Grind Number: 278H

Recommended Kit #1: 84160

Recommended add-on: 86092

Vehicle Fitments: