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Technical Articles for Part Number HRS-112841-12
Howards Cams Oval Track Lift Rule Hydraulic Flat Tappet Camshafts 112841-12
Part Number: HRS-112841-12
Howards Cams Oval Track Lift Rule Hydraulic Flat Tappet Camshafts
Camshaft, Hydraulic Flat Tappet, Advertised Duration 280/280, Lift .420/.420, Chevy, Small Block, Each
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Estimated Ship Date: Dec 31, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
112841-12
Part Type:
Product Line:
Summit Racing Part Number:
HRS-112841-12
UPC:
840793103379
Cam Style:
Hydraulic flat tappet
Camshaft Use:
Circle Track
Camshaft Manufacturers Description:
.420 lift rule with vacuum rule, medium banked quarter to 3/8-mile tracks. 2-barrel and good exhaust.
Basic Operating RPM Range:
3,200-6,600
Intake Duration at 050 inch Lift:
227
Exhaust Duration at 050 inch Lift:
227
Duration at 050 inch Lift:
227 int./227 exh.
Advertised Intake Duration:
280
Advertised Exhaust Duration:
280
Advertised Duration:
280 int./280 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.420 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.420 in.
Valve Lift with Factory Rocker Arm Ratio:
0.420 int./0.420 exh.
Lobe Separation (degrees):
112
Camshaft Gear Attachment:
3-bolt
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Quantity:
Sold individually.
Howards Cams Oval Track Lift Rule Hydraulic Flat Tappet Camshafts
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!
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Some parts are not legal for use in California or other states with similar laws / regulations
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