Comp Cams 12-211-2 Magnum Hydraulic Flat Tappet Camshaft 270H

Chevy 262-400ci Small Block 1955-98

*Note: In order to use these camshafts in 1955-57 265ci blocks, it is necessary to machine a small groove in the rear main journal of the cam to allow oil flow to the top of the engine.

High performance. Biggest cam with stock converter. Use lower gears. Mild rough idle.

Operating Range:

1800-5800 RPM

Duration Advertised:

270° Intake / 270° Exhaust

Duration @ .050'' Lift:

224° Intake / 224° Exhaust

Valve Lift w/1.5 Rockers:

.470'' Intake / .470'' Exhaust

Lobe Separation Angle:

110°

Specifications:

Exhaust Valve Lift (in.) 0.47

Intake Valve Lift (in.) 0.470

RPM Range 1800-5800

Exh. Duration @ .050 in. (Deg) 224

Int. Duration @ .050 in. (Deg) 224

Exh. Duration Advertised (Deg) 270

Int. Duration Advertised (Deg) 270

Engine Make/Size Chevy Small Block (262-400)

Lifter Type Hydraulic Flat Tappet

Usage Street/Strip

Advertised Duration 270 int./270 exh.

Advertised Exhaust Duration 270

Advertised Intake Duration 270

Basic Operating RPM Range 1,800-5,800

Cam Style Hydraulic flat tappet

Computer-Controlled Compatible No

Duration at 050 inch Lift 224 int./224 exh.

Exhaust Duration at 050 inch Lift 224

Exhaust Valve Lift with Factory Rocker Arm Ratio (in.) 0.47

Grind Number CS 270H-10

Intake Duration at 050 inch Lift 224

Intake Valve Lift with Factory Rocker Arm Ratio (in.) 0.47

Quantity Sold individually

Valve Lift with Factory Rocker Arm Ratio 0.470 int./0.470 exh.

Valve Springs Required Yes

Lobe Separation (Deg) 110

Manufacturer's Part Number: 12-211-2