Manufacturer's Part Number:
Edelbrock Rollin' Thunder Hydraulic Roller Camshafts
Summit Racing Part Number:
Hydraulic roller tappet
Basic Operating RPM Range:
Intake Duration at 050 inch Lift:
Exhaust Duration at 050 inch Lift:
Duration at 050 inch Lift:
227 int./234 exh.
Advertised Intake Duration:
Advertised Exhaust Duration:
298 int./302 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
Exhaust Valve Lift with Factory Rocker Arm Ratio:
Valve Lift with Factory Rocker Arm Ratio:
0.520 int./0.520 exh.
Lobe Separation (degrees):
Valve Springs Required:
This cam is a cast cam and requires a cast or melonized steel distributor drive gear.
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Make some noise with one of these Edelbrock Rollin' Thunder hydraulic roller camshafts. They feature more aggressive profiles than conventional cams without excessive valve overlap. Edelbrock does this by testing and tuning them together on engine dynamometers for maximum performance. There's no guesswork about part compatibility with the Edelbrock Rollin' Thunder hydraulic roller camshafts. Recommended for high performance street and strip use, the Edelbrock Rollin' Thunder hydraulic roller camshafts work best from 1,500 to 6,500 rpm and they maintain good vacuum at idle.