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COMP Cams 12-600-4 1973-1980 Avanti II Engine Camshaft
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COMP Cams
SKU 12-600-4

COMP Cams 12-600-4 Thumpr 227/241 Hydraulic Flat Cam for Chevrolet Small Block

$309.95 USD
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Free US shipping on orders over $80
Warranty 12 Months
Is this converter legal for your car? CARB legality checker · instant

Enter your Engine Family Number and we will confirm whether this exact converter is street-legal for your vehicle.

High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.

Thumpr 227/241 Hydraulic Flat Cam for Chevrolet Small Block 262-400. High performance street, stock converter ok, best with 2000+ converter and Gears. Choppy/thumping idle.

Specifications

Camshaft Series Thumpr
Usage Street/Performance
Exhaust Valve Lift 0.465 IN
Advertised Exhaust Duration 297 deg
Camshaft Gear Attachment 3
Camshaft Gear Attachment 3-Bolt
Camshaft Material Cast Iron
Intake Valve Lift 0.479 IN
Lobe Separation 107 deg
Basic Operating RPM Range 2,000-5,800 RPM
Intake Duration at .050 Inch Lift 227 deg
Exhaust Duration at .050 inch Lift 241 deg
Advertised Intake Duration 279 deg
Grind Number 279TH7
Engine Family Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Lifters Included No
Valve Springs Required Yes
Assembly Lubricant Included Yes
Cam and Lifter Kit Upgrade CL12-600-4
Cam, Lifter and Gear Drive Upgrade GK12-600-4
Lifter Type Hydraulic Flat Tappet
Cam Type Hydraulic Flat Tappet
K-Kit Upgrade K12-600-4

⚠️ California Proposition 65 Warning
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.

Warranty: 12 Months

Vehicle Fitment Fits 246 vehicle applications (1964-1980).

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$309.95