Talk to the experts. Call 800.979.0122, 7am-10pm CST, everyday.

REWARDS

GIFT CARDS

DEALS

TRACK ORDER

HELP CENTER

My

List

Menu

Shop

Garage

Cart

Account

COMP Cams 31-602-8 Thumpr Hyd. Roller Camshaft, Ford S/B
COMP Cams 31-602-8 Thumpr Hyd. Roller Camshaft, Ford S/B
COMP Cams

|

#282316028

COMP Cams 31-602-8 Thumpr Hyd. Roller Camshaft, Ford S/B

$522.95

/each

Factory Shipped


Quantity

Need Help? Call to Order

Add to a list

Share

Select an engine to verify Fitment

Select Engine

Product Summary

Hydraulic Roller Tappet Camshaft Type

    See more details

    Key Specs

    Camshaft TypeHydraulic Roller Tappet
    RPM Range2500-6200
    Intake Duration (.050" Lift)243
    Exhaust Duration (.050" Lift)257
    Lobe Separation107 °
    See more specs

    Need To Know

    Need help?

    855.313.9176
    View the Help Center

    Quick and Easy Returns

    Return Policy

    COMP Cams 31-602-8 Details

    COMP Cams Big Mutha' Thumpr 299THR7 Retro-Fit Hydraulic Roller Camshaft for Small Block Ford (289-302 Firing Order).

    Ford 221-302 c.i. 8 cyl. 1963-1995 (Includes 221, 260, 289 & 302). Big Mutha' Thumpr-Street/ strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle. Thumpr Retro-Fit Hydraulic Roller Camshaft. 3 grinds to fit all of your performance needs. Unique design. Maximizes sound and mid to high RPM power. Ensures safe piston-to-valve clearance. Proven to generate 25+ RWHP gains. Does not compromise durability.

    • Three unique cam designs for each application that deliver excellent horsepower gains & broad torque curve; perfect choice for muscle cars & street rods
    • Early intake valve opening & long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note
    • Best with aftermarket converters & more rear gear

    Application

    1963-85 Ford 289-302

    Guides & Documents

    Warranty (COMP Cams)

    CARB Warning

    For race/ off road use only

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.
    CA Prop 65
    CARB warning

    COMP Cams 31-602-8 Specifications

    KEY SPECS
    MFG. Part #31-602-8
    BrandCOMP Cams
    Camshaft TypeHydraulic Roller Tappet
    RPM Range2500-6200
    Intake Duration (.050" Lift)243
    Exhaust Duration (.050" Lift)257
    Lobe Separation107 °
    GENERAL
    Intake Valve Lift w/ Rocker Arm Ratio0.552"
    Exhaust Valve Lift w/ Rocker Arm Ratio0.537"
    Intake Duration299
    Exhaust Duration319
    Sold in QuantityEach
    Grind Number299THR7
    GTIN Code036584212065
    External Ignition Box RequiredNo
    Valve Springs RequiredYes

    Fitment

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    • Ford 289

    Customer Impersonation Script