Crane Cams Updates their Hemi valvetrain line with larger 60mm diameter cam journals, a 4/7 swap, and updated Ultra-Pro lifters.

Crane Cams Updates their Hemi valvetrain line with larger 60mm diameter cam journals, a 4/7 swap, and updated Ultra-Pro lifters.        

Racers using Chrysler’s 426 Hemi engine might want to take advantage of improved valvetrain efficiency thanks to 60mm journal camshafts and 1-1/16-inch diameter roller lifters from Crane Cams. The new cams are offered in both standard firing order and 4/7 swap configurations. By changing the intake and power cycles on number four and seven cylinders, you’ll get a nominal increase in power and a broadened torque curve. The cams are made in-house at Crane from 9310 billet steel, and feature enlarged 60mm cam bearing journals for use in contemporary racing blocks. Both standard firing order and 4/7 swap grinds are also available on standard 2.125-inch cam journal cores. Cams are also available enhanced with their patented Mikronite process, which increases the shaft strength, reduces bearing journal friction, and improves lifter life.

Make sure you match your cam with Crane’s premium grade Ultra-Pro roller lifters (offered with 1-1/16-inch diameter bodies) for Hemi racing applications. These are also Mikronite-enhanced and fortified with .188-inch diameter Monel pins and stainless steel guide bars. These new lifters (part No. 66549-16) have the same pushrod location (.200-inch raised) as its predecessor, so they can be retrofitted while maintaining proper pushrod length. To get more details on Crane’s line of Hemi valvetrain parts, call 386-258-6174, or log on to www.cranecams.com.