0
0
Shop By Vehicle
Top Categories
All Categories

Top Categories

All Categories


Hi, ! (Not you?)
My Account
1-800-345-4545
Track Order
Help
COMP Cams 20-721-9

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

249-20-721-9

Free Shipping Estimated to ship directly from the manufacturer on 12/20/18

$416.99
COMP Cams Drag Race Mechanical Roller Camshaft Lift .693"/.645" Duration 307/310 RPM Range 5000-8000 $416.99
Out of stock
QTY
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.

  • Items You Need

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.