Part NumberK11-601-4
Brand IDBDQQ
Brand LabelCOMP Cams
Item Quantity Size1
Item Quantity Size UOMKT
Minimum Order Quantity1
Minimum Order Quantity UOMKT
Quantity of Eaches in Package1
Weight29
UOM for weightPG
TitleThumpr 235/249 Hydraulic Flat Cam K-Kit for Chevrolet Big Block 396-454
Amazon ASINB001S1T8SA
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
Kit TypeK-Kit - Complete Kit
Camshaft SeriesThumpr
UsageStreet/Strip
Cam TypeHydraulic Flat Tappet
Basic Operating RPM Range2,000-5,900
Intake Duration at .050 Inch Lift235
Exhaust Duration at .050 inch Lift249
Advertised Intake Duration287
Advertised Exhaust Duration305
Lobe Separation107
Intake Valve Lift0.51
Exhaust Valve Lift0.495
Lifters IncludedYes
Valve Springs IncludedYes
Assembly Lubricant IncludedYes
Camshaft Gear Attachment3-Bolt
Camshaft MaterialCast Iron
Lifter TypeHydraulic Flat Tappet
Gaskets IncludedNo
Engine FamilyChevrolet 396-454 c.i. 8 Cylinder (1967-1996)
California Proposition 65WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov