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CRANE CAMSPART NUMBER: 271-105082
Energizer Hydraulic Flat Tappet Camshaft & Lifter Kit 1955-81 Pontiac 265-455ci - 2800-6200 RPM Range
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This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
1955-81 Pontiac 265-455ci
- Energizer Hydraulic Flat Tappet Camshaft & Lifter Kit
- 1955-81 Pontiac 265-455ci
- Lift: .480 in./.480 in.
- Duration: 284 deg/284 deg
- RPM Range: 2800-6200
*Note: Cylinder heads with casting number 540306, 544127 or 9771980 were equipped with 1.65 ratio rocker arms, the specs for this camshaft were devise using 1.5 ratio rocker arms.**Note: Ram Air engines require different springs. Minimum .040' clearance required between underside of rocker arms and top of retainers after valve adjustment when valves are closed. Adjustment when valves are closed.
***Note: Since 1975 General Motors divisions have exchanged engines throughout different models (ex. 350ci Chevy engines in Oldsmobile cars). Be certain of exactly which engine you have before ordering.
FAIR IDLE, MODERATE PERFORMANCE USAGE, GOOD MID-RANGE HP, MILD BRACKET RACING, AUTO TRANS W/2500+ CONVERTER, 3400-3800 CRUISE RPM, 9.5 TO 11.0 COMPRESSION RATIO ADVISED.
Grind Number: 284 H12 Operating Range: 2800-6200 RPM Duration Advertised: 284° Intake / 284° Exhaust Duration @ .050' Lift: 228° Intake / 228° Exhaust Valve Lift w/1.5 Rockers: .480' Intake / .480' Exhaust Lobe Separation Angle: 112° Max Lift Angle: 107° ATDC Intake / 117° BTDC Exhaust Open/Close @.050' Cam Lift: Intake - 7° BTDC (opens) / 41° ABDC (closes)
Exhaust - 51° BBDC (opens) / (3°) BTDC (closes)
- Available alone or with lifters, the Energizer Series of performance hydraulic camshafts offers streetable performance with serious torque, horsepower, and RPM gains at an affordable price. These single-pattern camshafts have profiles with tighter lobe separations for added torque, midrange power, and throttle response. They're great for stock or mildly modified V8 applications (not for computer-controlled engines).
Part TypeCamshaft Kit
Product LineCrane Cams Energizer Camshaft & Lifter Kits
BrandCRANE CAMS
Package Height2.8
Package Width4.0
Package Length25.9
Weight12.83 PG
Vendor Part Number105082
Package Qty1
Package TypeEA
Some parts are not legal for use in California or other states with similar laws / regulations
