Xtreme Energy™, XE284H-10 Street/Strip, Rough Idle, 9.5:1+ Compression

Xtreme Energy™ 4/7 Swap 240/246 Hydraulic Flat Tappet Cam for Chevy Big Block 396-454 street/strip applications. 9.5:1+ Compression. 2800+ stall. Rough idle.

Smart engine builders understand the benefits of a 4&7 firing order swap camshaft, which exchanges the 4 and 7 camshaft lobe timing in small and big block Chevrolet engines. While somebuilders have realized significant horsepower gains, all of themexperience the exceptionally smooth torque curve possible withthis new firing order technology. Dyno, Spintron and track-tested, the Xtreme Energy™ 4&7 Hydraulic Lifter Camshafts do not require any engine block, ignition or valve train modifications and can be custom ground to the engine builder's exact specifications. Regardless of the camspecs you require, these camshafts are engineered to achieve themaximum power possible using advanced lobe designs.

*BBC - 1965-66 396 c.i. 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.