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Technical Articles for Part Number HRS-120061-10
Howards Cams Hydraulic Flat Tappet Camshafts
Camshaft, Hydraulic Flat Tappet, Advertised Duration 299/299, Lift .578/.578, Chevy, Big Block, Each
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Estimated Ship Date: Dec 31, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
120061-10
Part Type:
Product Line:
Summit Racing Part Number:
HRS-120061-10
UPC:
840793104994
Cam Style:
Hydraulic flat tappet
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
Hot Street and bracket racing. Big torque, 10.0:1+ compression ratio, 3,000+ stall and lower gears.
Basic Operating RPM Range:
2,800-6,900
Intake Duration at 050 inch Lift:
245
Exhaust Duration at 050 inch Lift:
245
Duration at 050 inch Lift:
245 int./245 exh.
Advertised Intake Duration:
299
Advertised Exhaust Duration:
299
Advertised Duration:
299 int./299 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.578 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.578 in.
Valve Lift with Factory Rocker Arm Ratio:
0.578 int./0.578 exh.
Lobe Separation (degrees):
110
Camshaft Gear Attachment:
3-bolt
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Quantity:
Sold individually.
Howards Cams Hydraulic Flat Tappet Camshafts
Howards Cams offers their hydraulic flat tappet camshafts in a variety of configurations and performance levels for street, strip, and oval track purposes. All their flat tappet cams meet strict requirements to ensure the highest quality (and many get packaged and shipped in their unique, reusable, high-impact-plastic cases to ensure the quality reaches your doorstep.) Get the profile you want—from mild and smooth to loud and rough—with the hydraulic flat tappet camshafts from Howards Cams designed for your 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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