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Technical Articles for Part Number CCA-127010
COMP Cams Thumpr NSR Modular 3V Camshafts
Camshafts, Hydraulic Roller Follower, Advertised Duration 265/298, Lift .450/.450, Ford, Modular V8, 3V, Pair
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Estimated Ship Date from Texas: Monday 10/26/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
127010
Part Type:
Product Line:
Summit Racing Part Number:
CCA-127010
UPC:
036584192329
Cam Style:
SOHC
Camshaft Use:
Street/Strip
Basic Operating RPM Range:
750-6,400
Intake Duration at 050 inch Lift:
226
Exhaust Duration at 050 inch Lift:
246
Duration at 050 inch Lift:
226 int./246 exh.
Advertised Intake Duration:
265
Advertised Exhaust Duration:
298
Advertised Duration:
265 int./298 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.450 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.450 in.
Valve Lift with Factory Rocker Arm Ratio:
0.450 int./0.450 exh.
Lobe Separation (degrees):
109
Remanufactured:
No
Computer-Controlled Compatible:
Yes
Grind Number:
TH265LL-9
Valve Springs Required:
No
Quantity:
Sold as a pair.
Notes:
Designed to fit SOHC modular 3V engines. Requires cam phaser upgrade and custom tuning.
COMP Cams Thumpr NSR Modular 3V Camshafts
COMP Cams Thumpr NSR modular 3-valve camshafts for Ford 4.6L/5.4L engines deliver an aggressive "thumping" exhaust idle and generous power gains in the middle and upper rpm range. They will turn your Ford 3-valve engine into a performance machine with a minimum of installation difficulty; they only require the addition of COMP Cams cam phaser limiter kits and computer tuning. These cam phaser limiter kits safely modify the factory variable cam timing (VCT) system, allowing for the use of aggressive camshaft lobe technology without sacrificing the benefits of the VCT. Choose between three unique cam designs—Thumpr, Mutha' Thumpr, and Big Mutha' Thumpr. Each delivers excellent horsepower gains and broad torque curves for your musclecar.
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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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