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Crane Cams 967251

Crane Cams Blueprinted/Direct Factory Replacement Camshafts

Crane Cams 967251

Part Number: 271-967251

Blueprinted Mechanical Flat Tappet Camshaft
(302ci/290HP Z28 Engine)
Lift: .485''/.485''
Duration @ .050'': 254°/254°
RPM Range: 4000-6800
Ships 10/24/16
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Crane Cams 967251 Crane Cams Blueprinted/Direct Factory Replacement Camshafts $136.91

Crane Cams 967251 Details

1955-98 Small Block Chevy 262-400

*Note: Meets memorandum 1-A for original applications.

**Note: In order to use these camshafts in 1955-57 265ci blocks, it is necessary to machine a small groove in the rear main journal of the cam to allow oil flow to the top of the engine.

***Note: Beginning in 1987, most of the V-6 and V-8 engines were equipped with hydraulic roller camshafts. There are differences in the block to accommodate a cam retention thrust plate and the anti-rotation mechanism for the lifters. These blocks are identifiable by bolt holes for a cam retention plate under the upper timing sprocket, as well as bosses and tapped holes in the lifter valley for lifter retention hardware. The camshafts on these engines have a step nose and smaller bolt circle on the front of the cam. An earlier model camshaft may be used in these blocks by using the appropriate timing chain set and adding a thrust button when using a roller cam.
1988-99 Chevrolet 305 and 350 V-8 engines (and some 1987 350 V-8 engines) use a different configuration camshaft core than the 1955-87 engines and cannot be interchanged.

Grind Number: 3849346
Operating Range:4000-6800 RPM
Duration Advertised:N/A Intake / N/A Exhaust
Duration @ .050'' Lift:254° Intake / 254° Exhaust
Valve Lift w/1.5 Rockers:.485'' Intake / .485'' Exhaust
Lobe Separation Angle:114°
Max Lift Angle:112° ATDC Intake / 116° BTDC Exhaust
Open/Close @.050'' Cam Lift:Intake - 15° BTDC (opens) / 59° ABDC (closes)
Exhaust - 63° BBDC (opens) / 11° ATDC (closes)


Manufacturer's Part Number:

Crane Cams Blueprinted/Direct Factory Replacement Camshafts meet memorandum 1-A for original applications and feature the same specifications as OEM (Original Equipment Manufacturer).

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