Engine Kits

Comp Cams BB Chevy  Mutha Thumpr Hyd. Cam & Lifter Kit
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Comp Cams BB Chevy Mutha Thumpr Hyd. Cam & Lifter Kit



Part #: CL11-601-4
List Price: $425.50
Our Price: $212.75
You Save: $212.75

Availability: In Stock



Comp Cams B/B Chevy 287T H-107 Mutha Thumpr Hyd. Flat Tappet Cam & Lifter Kit

The aggressive exhaust note of a Thumpr cams comes from a combination of early exhaust valve opening, long exhaust duration and a generous amount of intake and exhaust overlap - maximizing the rough-idling characteristics of the cams without negatively impacting power or streetability.
Advertised Duration 287 int./304 exh.
Advertised Exhaust Duration 304
Advertised Intake Duration 287
Assembly Lubricant Included Yes
Basic Operating RPM Range 2,000-5,900
Brand COMP Cams
Cam Style Hydraulic flat tappet
Computer-Controlled Compatible No
Duration at 050 inch Lift 235 int./249 exh.
Exhaust Duration at 050 inch Lift 249
Exhaust Valve Lash 0.000 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.495 in.
Gaskets Included No
Grind Number 287TH7
Intake Duration at 050 inch Lift 235
Intake Valve Lash 0.000 in.
Intake Valve Lift with Factory Rocker Arm Ratio 0.510 in.
Lifter Style Hydraulic flat tappet
Lifters Included Yes
Lobe Separation (degrees) 107
Locks Included No
Part Type Camshaft and Lifter Kits
Product Line COMP Cams Thumpr Hydraulic Flat Tappet Camshafts
Pushrods Included No
Quantity Sold as a kit.
Retainers Included No
Rocker Arms Included No
Timing Chain and Gears Included No
Valve Lift with Factory Rocker Arm Ratio 0.510 int./0.495 exh. lift
Valve Springs Included No
Valve Stem Seal Set Included No