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COMP Cams 11-703-9

Drag Race Mechanical Roller Camshaft Lift .714"/.680" Duration 312/319 RPM Range 4500-7300

COMP Cams 11-703-9

249-11-703-9

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Ships 12/12/16 if Ordered Today
COMP Cams 11-703-9 Drag Race Mechanical Roller Camshaft Lift .714"/.680" Duration 312/319 RPM Range 4500-7300 $330.99
Drag Race Mechanical Roller Camshaft
Lift .714"/.680"
Duration 312/319
RPM Range 4500-7300

COMP Cams 11-703-9 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.

** Note: Requires upgraded gear, thrust button & wear plate.

Super Street / Super Gas, 427-468ci, 5000 stall converter, 2500-3000 lb. car.

Operating Range:4500-7300 RPM
Duration Advertised:312° Intake / 319° Exhaust
Duration @ .050'' Lift:278° Intake / 282° Exhaust
Valve Lift w/1.7 Rockers:.714'' Intake / .680'' Exhaust
Valve Setting:.028'' Intake / .030'' Exhaust
Lobe Separation Angle:110°

Specifications:

Exhaust Valve Lift (in.)
0.68
Intake Valve Lift (in.)
0.714
Int. Duration @ .050 in. (Deg)
278
Exh. Duration @ .050 in. (Deg)
282
Int. Duration Advertised (Deg)
312-5
Exh. Duration Advertised (Deg)
319-1
RPM Range
4500-7300
Engine Make/Size
Chevy Big Block (396-454)
Lifter Type
Mechanical Roller
Usage
Strip
Advertised Duration
312 int./319 exh.
Advertised Exhaust Duration
319
Advertised Intake Duration
312
Basic Operating RPM Range
4,500-7,300
Cam Style
Mechanical roller tappet
Computer-Controlled Compatible
No
Duration at 050 inch Lift
278 int./282 exh.
Exhaust Duration at 050 inch Lift
282
Exhaust Valve Lash (in.)
0.03
Exhaust Valve Lift with Factory Rocker Arm Ratio (
0.68
Grind Number
CB 312C-R10
Intake Duration at 050 inch Lift
278
Intake Valve Lash (in.)
0.028
Intake Valve Lift with Factory Rocker Arm Ratio (i
0.714
Quantity
Sold individually
Valve Lift with Factory Rocker Arm Ratio
0.714 int./0.680 exh.
Valve Springs Required
Yes
Lobe Separation (Deg)
110
Manufacturer's Part Number:
11-703-9

Roller Cam For On Demand Power

Camshafts specifically designed for use in all ''Super'' catagory cars, especially those equipped with throttle stops. These powerful Comp Cams offer crisp, immediate throttle response and excellent repeatability, plus are relatively easy on valve train parts.

Features:
  • Wide assortment of racing camshafts for all application requirements of drag, oval track and puller & mud competitors
  • Require accurate assessment of rear end gearing and other vehicle-based equipment to deliver top performance
  • Not made for street use or vehicles requiring accessory drive equipment, such as power brakes, air conditioning, etc.

    Small Kits are indicated by a SK in their part number and include Camshaft, Lifters, Timing Chain Set, Assembly Lube, Decals, and Instructions.

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