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Technical Articles for Part Number HRS-190225-13
Howards Cams Hydraulic Roller Camshafts
Camshaft, Hydraulic Roller Tappet, Advertised Duration 272/272, Lift .561/.561, Chevy, Small Block LS, Each
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Estimated Ship Date: Oct 23, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
190225-13
Part Type:
Product Line:
Summit Racing Part Number:
HRS-190225-13
UPC:
840793108565
Cam Style:
Hydraulic roller, OE roller
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
Street/strip power. Great midrange with top-end performance.
Basic Operating RPM Range:
1,800-6,500
Intake Duration at 050 inch Lift:
222
Exhaust Duration at 050 inch Lift:
222
Duration at 050 inch Lift:
222 int./222 exh.
Advertised Intake Duration:
272
Advertised Exhaust Duration:
272
Advertised Duration:
272 int./272 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.561 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.561 in.
Valve Lift with Factory Rocker Arm Ratio:
0.561 int./0.561 exh.
Lobe Separation (degrees):
113
Camshaft Gear Attachment:
3-bolt
Remanufactured:
No
Computer-Controlled Compatible:
Yes
Valve Springs Required:
Yes
Quantity:
Sold individually.
Notes:
For use with cathedral port cylinder heads. Upgraded springs and custom computer tuning required.
Howards Cams Hydraulic Roller Camshafts
Howards Cams hydraulic roller camshafts are offered in a wide variety of profiles, from mild to wild. These units are precision-ground from race-quality cores, in-house, on dedicated cam-grinding machines. Each Howards Cams hydraulic roller camshaft is manufactured to the highest quality standards. Order the model designed for your vehicle and engine application.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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