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Instruction Sheets for Part Number HRS-122132-08
Technical Articles for Part Number HRS-122132-08
Howards Cams Mechanical Flat Tappet Camshafts 122132-08
Part Number: HRS-122132-08
Howards Cams Mechanical Flat Tappet Camshafts
Camshaft, Mechanical Flat Tappet, Advertised Duration 299/305, Lift .561/.580, Chevy, Big Block, Each
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Estimated Ship Date: Dec 29, 2026 Would you rather pick it up?
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Overview
Brand:
Manufacturer's Part Number:
122132-08
Part Type:
Product Line:
Summit Racing Part Number:
HRS-122132-08
UPC:
840793106622
Cam Style:
Solid flat tappet
Camshaft Use:
Drag race
Camshaft Manufacturers Description:
Rough idle, drag race. Higher compression ratio, stall speed and lower gears.
Basic Operating RPM Range:
3,500-7,000
Intake Duration at 050 inch Lift:
264
Exhaust Duration at 050 inch Lift:
270
Duration at 050 inch Lift:
264 int./270 exh.
Advertised Intake Duration:
299
Advertised Exhaust Duration:
305
Advertised Duration:
299 int./305 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.561 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.580 in.
Valve Lift with Factory Rocker Arm Ratio:
0.561 int./0.580 exh.
Lobe Separation (degrees):
108
Camshaft Gear Attachment:
3-bolt
Intake Valve Lash:
0.022 in.
Exhaust Valve Lash:
0.022 in.
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Quantity:
Sold individually.
Howards Cams Mechanical Flat Tappet Camshafts
Do you need aggressive quality? Howards Cams mechanical flat tappet camshafts are 100 percent Rockwell-checked and Parkerized to ensure the highest quality control standards! They use only the highest-grade, race-quality cores available and are ground on dedicated, high-precision machines at Howards Cams--not reboxed! Capable of high-engine rpm, these camshafts are a good choice for everything from moderate street performance to serious racing. Do you have lots of rpm? Go aggressive with a winner--Howards Cams mechanical flat tappet camshafts!
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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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