Manufacturer's Part Number:
Howards Cams Oval Track Lift Rule Hydraulic Flat Tappet Camshafts
Summit Racing Part Number:
Hydraulic flat tappet
Basic Operating RPM Range:
Intake Duration at 050 inch Lift:
Exhaust Duration at 050 inch Lift:
Duration at 050 inch Lift:
223 int./229 exh.
Advertised Intake Duration:
Advertised Exhaust Duration:
276 int./282 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
Exhaust Valve Lift with Factory Rocker Arm Ratio:
Valve Lift with Factory Rocker Arm Ratio:
0.420 int./0.420 exh.
Lobe Separation (degrees):
Camshaft Gear Attachment:
Valve Springs Required:
Camshaft Manufacturers Description:
.420 lift rule with vacuum rule, flat to low-banked 1/4 mile tracks.
Choose In-store pick-up (OH, GA, NV) on our web site.
Howards Cams oval track lift rule hydraulic flat tappet camshafts are designed to meet the requirements of oval track racing. These camshafts are offered in a variety of profiles, each specifically geared to track length and type. Manufactured using dedicated, high-precision cam grinding machines, each oval track lift rule hydraulic flat tappet camshaft is 100 percent Rockwell checked and Parkerized to ensure the highest quality standards are met. You can count on Howards Cams for the right cam for your oval track racing needs!