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Crane Cams 134571

PowerMax Hydraulic Flat Tappet Camshaft Lift: .571" /.585" Duration: 306°/314° RPM Range: 3400-7000

Crane Cams 134571

271-134571

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Crane Cams 134571 PowerMax Hydraulic Flat Tappet Camshaft Lift: .571" /.585" Duration: 306°/314° RPM Range: 3400-7000 $136.65
PowerMax Hydraulic Flat Tappet Camshaft
Lift: .571''/.585''
Duration: 306°/314°
RPM Range: 3400-7000

Crane Cams 134571 Details

Chevy 396-454ci Big Block 1965-96

*Note: In order to use these camshafts in 1965-66 396/427ci blocks, it is necessary to machine a 3/16'' wide x 7/64'' deep groove in the rear main journal of the cam to allow oil flow to the top of the engine.

ROUGH IDLE, PERFORMANCE USAGE, GOOD UPPER RPM HP, BRACKET RACING, AUTO TRANS W/ 3500+ CONVERTER, MARINE PERFORMANCE, 4000-4400 CRUISE RPM, 10.5 TO 12.0 COMPRESSION RATIO ADVISED.

Grind Number: H-306-2 (Replaces CCH-306-2)
Operating Range:3800-6800 RPM
Duration Advertised:306° Intake / 314° Exhaust
Duration @ .050'' Lift:246° Intake / 254° Exhaust
Valve Lift w/1.7 Rockers:.571'' Intake / .585'' Exhaust
Lobe Separation Angle:112°
Max Lift Angle:107° ATDC Intake / 117° BTDC Exhaust
Open/Close @.050'' Cam Lift:Intake - 16° BTDC (opens) / 50° ABDC (closes)
Exhaust - 64° BBDC (opens) / 10° ATDC (closes)

The most popular OE camshaft type through the late 1980s, hydraulic lifter profiles can provide a power curve that tops out just over 7000 RPM when used with high-performance hydraulic lifters. Also easy to maintain, hydraulic cams range from aggressive (rough idle) to towing (improved bottom-end torque).

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