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COMP Cams 12-900-9

Drag Race Mechanical Roller Camshaft Lift: .630" /.630" Duration: 288/296 RPM Range: 3200-6200

COMP Cams 12-900-9

249-12-900-9

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COMP Cams 12-900-9 Drag Race Mechanical Roller Camshaft Lift: .630" /.630" Duration: 288/296 RPM Range: 3200-6200 $326.99
Drag Race Mechanical Roller Camshaft
Lift: .630''/.630''
Duration: 288/296
RPM Range: 3200-6200

COMP Cams 12-900-9 Details

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.

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

Great torque, 10:1 compression, 3500+ stall.

Operating Range:3200-6200 RPM
Duration Advertised:288° Intake / 296° Exhaust
Duration @ .050'' Lift:252° Intake / 258° Exhaust
Valve Lift w/1.5 Rockers:.630'' Intake / .630'' Exhaust
Valve Setting:.026'' Intake / .028'' Exhaust
Lobe Separation Angle:106°

Specifications:

Exhaust Valve Lift (in.)
0.63
Intake Valve Lift (in.)
0.630
Int. Duration @ .050 in. (Deg)
252
Exh. Duration @ .050 in. (Deg)
258
Int. Duration Advertised (Deg)
288-5
Exh. Duration Advertised (Deg)
296-6
Engine Make/Size
Chevy Small Block (262-400)
Lifter Type
Mechanical Roller
RPM Range
3200-6900
Usage
Strip
Advertised Duration
288 int./296 exh.
Advertised Exhaust Duration
296
Advertised Intake Duration
288
Basic Operating RPM Range
3,500-6,900
Cam Style
Mechanical roller tappet
Computer-Controlled Compatible
No
Duration at 050 inch Lift
252 int./258 exh.
Exhaust Duration at 050 inch Lift
258
Exhaust Valve Lash (in.)
0.022
Exhaust Valve Lift with Factory Rocker Arm Ratio (
0.63
Grind Number
CS 288A-R6
Intake Duration at 050 inch Lift
252
Intake Valve Lash (in.)
0.02
Intake Valve Lift with Factory Rocker Arm Ratio (i
0.63
Quantity
Sold individually
Valve Lift with Factory Rocker Arm Ratio
0.630 int./0.630 exh.
Valve Springs Required
Yes
Lobe Separation (Deg)
106
Manufacturer's Part Number:
12-900-9

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.

  • 12-900-9 - Comp Cams 'Drag Race' Mechanical Roller Camshafts is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from works perfect runs awsome and sounds great would recomend anytime
    Date published: 2016-05-29
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