Comp Cams Classic Big Mutha' Thumpr 242/257 Hydraulic Flat Cam for Chevrolet 348-409 - 48-602-5
Street/strip, aluminum heads necessary, 2500+ stall, gears and headers, very rough idle.
Classic Big Mutha' Thumpr 242/257 Hydraulic Flat Cam for Chevrolet 348-409
PRODUCT NOTES:
Camshaft Series - Classic Thumpr
Cam Type - Hydraulic Flat Tappet
Grind Number - 295TH7
Basic Operating RPM Range - 2,500-6,000 R3
Intake Duration at .050 Inch Lift - 242 DD
Exhaust Duration at .050 inch Lift - 257 DD
Advertised Intake Duration - 294 DD
Advertised Exhaust Duration - 312 DD
Lobe Separation - 107 DD
Intake Valve Lift - 0.537 IN
Exhaust Valve Lift - 0.521 IN
Lifters Included - No
Valve Springs Required - Yes
Assembly Lubricant Included - Yes
Camshaft Gear Attachment - 3-Bolt
Camshaft Material - Cast Iron
Engine Family - Chevrolet 348-409 c.i. 8 Cylinder (1958-1965)
California Proposition 65 - WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Lifter Type - Hydraulic Flat Tappet
Title - Classic Big Mutha' Thumpr 242/257 Hydraulic Flat Cam for Chevrolet 348-409
Amazon ASIN - B005H89WQI
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles? - Yes, but must be a race/competition only vehicle.
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967? - Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965? - Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967? - Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for On-Road Vehicles? - No
C.A.R.B. Exemption Reason - N/A
C.A.R.B. E.O. Number - N/A
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For more than 35 years, the COMP Cams® mission has never changed: to produce the highest-performing products possible, provide customers with superior service, and to lead the industry in technological development. While the COMP Performance Group™ has grown to multiple companies and hundreds of employees, we still retain the competitive spirit and desire to be the very best that has positioned COMP Cams® as the absolute leader in valve train components.
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