Comp Cams Classic Mutha' Thumpr 227/241 Hydraulic Flat Cam Buick 364, 401, 425 Nailhead - 91-601-5
High performance street/strip, head modification recommended to raise RPM limit, 2200+ stall, rough idle.
Classic Mutha' Thumpr 227/241 Hydraulic Flat Cam Buick 364, 401, 425 Nailhead
PRODUCT NOTES:
Camshaft Series - Classic Thumpr
Usage - Street/Strip
Cam Type - Hydraulic Flat Tappet
Grind Number - 287TH7
Basic Operating RPM Range - 2,200-6,100 R3
Intake Duration at .050 Inch Lift - 235 DD
Exhaust Duration at .050 inch Lift - 249 DD
Advertised Intake Duration - 287 DD
Advertised Exhaust Duration - 305 DD
Lobe Separation - 107 DD
Intake Valve Lift - 0.49 IN
Exhaust Valve Lift - 0.475 IN
Lifters Included - No
Valve Springs Required - Yes
Assembly Lubricant Included - Yes
Camshaft Material - Cast Iron
Engine Family - Buick Nailhead 364, 401, 425 c.i. 8 Cylinder (1957-1966)
Lifter Type - Hydraulic Flat Tappet
California Proposition 65 - WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Title - Classic Mutha' Thumpr 227/241 Hydraulic Flat Cam Buick 364, 401, 425 Nailhead
Amazon ASIN - B005H89RKO
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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