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COMP Cams 20-721-9

Drag Race Mechanical Roller Camshaft Lift .693"/.645" Duration 307/310 RPM Range 5000-8000

COMP Cams 20-721-9

249-20-721-9

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Ships 12/12/16 if Ordered Today
COMP Cams 20-721-9 Drag Race Mechanical Roller Camshaft Lift .693"/.645" Duration 307/310 RPM Range 5000-8000 $333.99
Drag Race Mechanical Roller Camshaft
Lift .693"/.645"
Duration 307/310
RPM Range 5000-8000

COMP Cams 20-721-9 Details

Chrysler 273-360 C.I. 8 CYL. 1964-2000

Mechanical Roller-Fast Bracket High Compression

Specifications:

Exhaust Valve Lift (in.)
0.645
Int. Duration @ .050 in. (Deg)
274
Exh. Duration @ .050 in. (Deg)
279
Exh. Duration Advertised (Deg)
310
RPM Range
5000-8000
Engine Make/Size
Chevy Big Block (396-454)
Lifter Type
Mechanical Roller
Intake Valve Lift (in.)
0.693
Int. Duration Advertised (Deg)
307
Usage
Strip
Advertised Duration
307 int./310 exh.
Advertised Exhaust Duration
310
Advertised Intake Duration
307
Basic Operating RPM Range
5,000-8,000
Cam Style
Mechanical roller tappet
Computer-Controlled Compatible
No
Duration at 050 inch Lift
274 int./279 exh.
Exhaust Duration at 050 inch Lift
279
Exhaust Valve Lash (in.)
0.028
Exhaust Valve Lift with Factory Rocker Arm Ratio (
0.665
Grind Number
CRS 307-R6
Intake Duration at 050 inch Lift
274
Intake Valve Lash (in.)
0.026
Intake Valve Lift with Factory Rocker Arm Ratio (i
0.693
Quantity
Sold individually
Valve Lift with Factory Rocker Arm Ratio
0.693 int./0.665 exh.
Valve Springs Required
Yes
Lobe Separation (Deg)
106
Manufacturer's Part Number:
20-721-9

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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