COMP Cams Camshaft CB 270H-R10 - 11-420-8

Magnum 215/215 Hydraulic Roller Cam for Chevrolet Big Block 396-454

Application: Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts

Daily driven street machines. Works with stock converters. Likes headers. 396c.i. needs 3.55-3.73+ gear. Slightly rough idle.

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 <a href="https://www.raptorracing.ca/Tech-support">contact us</a>, and we will assist you with placing an order.

An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts. Ideal for use with higher compression ratio engines that need to bleed off compression, the magnum series performs its best when static compression is 9.5:1+ and with an aftermarket higher stall torque converter. Delivering excellent high RPM power, while not needlessly abusing valve train parts, the Magnum grind family is the perfect choice for performance engines equipped with mild ratio rocker arms and traditional performance valve springs.

• Easy on valve train parts.
• Can be used with mild ratio rocker arms and traditional performance valve springs.
• Best with aftermarket torque converters and 9.5:1 compression.
• Easy on valve train parts.
• Great high RPM power.