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Crane Mechanical Roller Camshafts 13R001254

Crane Cams 13R001254 - Crane Mechanical Roller Camshafts

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Camshaft, 4/7 Swap, Mechanical Roller Tappet, Advertised Duration 286/289, Lift .714/.714, Chevy, Big Block

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Estimated Ship Date: Monday 10/6/2014 (if ordered today) Would you rather pick it up? Select Location

Brand: Crane Cams
Manufacturer's Part Number: 13R001254
Part Type: Camshafts
Summit Racing Part Number: CRN-13R001254

Cam Style: Mechanical roller tappet
Basic Operating RPM Range: 3,400-7,200
Intake Duration at 050 inch Lift: 254
Exhaust Duration at 050 inch Lift: 266
Duration at 050 inch Lift: 254 int./266 exh.
Advertised Intake Duration: 286
Advertised Exhaust Duration: 298
Advertised Duration: 286 int./289 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.714 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.714 in.
Valve Lift with Factory Rocker Arm Ratio: 0.714 int./0.714 exh.
Lobe Separation (degrees): 111
Intake Valve Lash: 0.020 in.
Exhaust Valve Lash: 0.020 in.
Computer-Controlled Compatible: No
Grind Number: R-254/420-2S2-16
Valve Springs Required: Yes
Quantity: Sold individually.
Notes: Cam has 4/7 swap firing order.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

Crane's mechanical roller camshafts are not for the weak of heart. These camshafts are engineered for operation at ranges that can exceed 10,000 rpm and are the perfect blend of performance and efficiency. While a large number of mechanical roller cams are used in purely competition applications, Crane also manufactures less severe roller grinds that are designed for high performance street engines that have higher compression or power-adders. (For best results, the valve lash must be checked and set periodically.) Crane Cams has the industry's largest database of camshaft profiles. This enables Crane to provide you with camshafts that are ideally suited for your application. If you have a power-eating mean machine, Crane has the perfect camshaft for you!

Warranty

Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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