Engine Kits

CompCams Big Mutha Thumpr 291THR7
Click On Image To Enlarge

CompCams Big Mutha Thumpr 291THR7



Part #: 54-602-11
List Price: $841.98
Our Price: $420.99
You Save: $420.99



CompCams Big Mutha Thumpr 291THR7

RPM Operating Range: 2600-6800
Adv. Intake/Exhaust: 291/311
Dur. @.050 Intake/Exhaust: 235/249
Advertised Duration 291 int./311 exh.
Advertised Exhaust Duration 311
Advertised Intake Duration 291
Basic Operating RPM Range 2,600-6,800
Brand COMP Cams
Cam Style Hydraulic roller tappet
Camshaft Gear Attachment 3-bolt
Computer-Controlled Compatible Yes
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 0.558 in.
Grind Number 291THR9
Intake Duration at 050 inch Lift 235
Intake Valve Lash 0.000 in.
Intake Valve Lift with Factory Rocker Arm Ratio 0.573 in.
Lobe Separation (degrees) 109
Notes Requires computer tuning in stock EFI applications.
Part Type Camshafts
Product Line COMP Cams Thumpr Hydraulic Roller Camshafts
Quantity Sold individually.
Valve Lift with Factory Rocker Arm Ratio 0.573 int./0.558 exh. lift