Comp Cams 11-242-3 Xtreme Energy Hydraulic Flat Tappet Camshaft BBC 268H

Product details:

Chevy 396-454ci Big Block 1965-96

*Note: In order to use these camshafts in 1965-66 396/427ci blocks, it is necessary to machine a 3/16'' wide x 7/64'' deep groove in the rear main journal of the cam to allow oil flow to the top of the engine.

Good for street machines, slightly rough idle, stock converter.

Specifications:

Intake Valve Lift (in.) 0.515

Exhaust Valve Lift (in.) 0.52

RPM Range 1600-5800

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

Exh. Duration @ .050 in. (Deg) 230

Int. Duration Advertised (Deg) 268

Exh. Duration Advertised (Deg) 280

Engine Make/Size Chevy Big Block (396-454)

Lifter Type Hydraulic Flat Tappet

Usage Street/Performance

Advertised Duration 268 int./280 exh.

Advertised Exhaust Duration 280

Advertised Intake Duration 268

Basic Operating RPM Range 1,600-5,800

Cam Style Hydraulic flat tappet

Computer-Controlled Compatible No

Duration at 050 inch Lift 224 int./230 exh.

Exhaust Duration at 050 inch Lift n 230

Exhaust Valve Lift with Factory Rocker Arm Ratio (0.52)

Grind Number CB XE268H-10

Intake Duration at 050 inch Lift 224

Intake Valve Lift with Factory Rocker Arm Ratio (i0.515)

Quantity Sold individually

Valve Lift with Factory Rocker Arm Ratio 0.515 int./0.520 exh.

Valve Springs Required Yes

Lobe Separation (Deg) 110

Manufacturer's Part Number: 11-242-3