Xtreme Energy™, XR280R: Cam & S-Kit-1

Xtreme Energy™ 242/248 Solid Roller Cam SK-Kit for Chevy Small Block. Best in street machines with 10:1+ Compression, 3.73-3.90 rear gears and a 2800+ stall.
MECHANICAL ROLLER: Best in street machines with 2800 stall, 10:1 or more compression with 3.73 -3.90 rear gears.

the K-Kit

*SBC - 1955-57 models have an oiling groove in the rear journal. The listed part numbered cams will not fit these models, so if you require a camshaft with the oiling groove, please call us at 1-800-999-0853 or click here to contact us, and we will assist you with placing an order.