Outdated Internet Browser Detected

The Internet Browser you are using cannot establish a secure connection to SummitRacing.com which will prevent you from being able to Log In or Checkout. This is most likely because SSL 3.0 is your default SSL setting. This makes you vulnerable to the "POODLE exploit" and to ensure your security, it is not allowed on our site. Please change your browser security settings to not allow SSL 3.0 or attempt to update your browser using these links.

In-Store Pickup Location Close

Crane Mechanical Roller Camshafts 688981

Crane Cams 688981 - Crane Mechanical Roller Camshafts

Image is a representation of this item.
Actual item may vary.

Loading media


In progress
Get Free Shipping with Your Order over $99!

Camshaft, 3-Bolt, Mechanical Roller Tappet, Advertised Duration 312/312, Lift .670/.670, Mopar, Big Block,Each

Estimated Ship Date: 1/26/2015 (if ordered today) Would you rather pick it up? Select Location

  • Check Application

  • This part is normally shipped directly from the manufacturer / Supplier.

  • Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

Brand: Crane Cams

Manufacturer's Part Number: 688981

Part Type: Camshafts

Product Line: Crane Mechanical Roller Camshafts

Summit Racing Part Number: CRN-688981

UPC: 021174013597

Cam Style: Mechanical roller tappet

Basic Operating RPM Range: 4,700-8,000

Intake Duration at 050 inch Lift: 280

Exhaust Duration at 050 inch Lift: 280

Duration at 050 inch Lift: 280 int./280 exh.

Advertised Intake Duration: 312

Advertised Exhaust Duration: 312

Advertised Duration: 312 int./312 exh.

Intake Valve Lift with Factory Rocker Arm Ratio: 0.670 in.

Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.670 in.

Valve Lift with Factory Rocker Arm Ratio: 0.670 int./0.670 exh.

Lobe Separation (degrees): 108

Camshaft Gear Attachment: 3-bolt

Intake Valve Lash: 0.028 in.

Exhaust Valve Lash: 0.030 in.

Computer-Controlled Compatible: No

Grind Number: R-280/4468-8

Valve Springs Required: Yes

Quantity: Sold individually.

Notes: 3-bolt camshaft. Requires cam button spacer and aluminum-bronze distributor drive gear.

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

Back To Results
Email this page Close
Close