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Technical Articles for Part Number CCA-646-431-13
COMP Cams XFI AFM GM Gen IV Camshafts
Camshaft, Hydraulic Roller Tappet, Advertised Duration 275/286, Lift .500/.500, Chevy, 5.3, 6.0L, Each
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Estimated Ship Date: Oct 23, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
646-431-13
Part Type:
Product Line:
Summit Racing Part Number:
CCA-646-431-13
UPC:
036584238003
Cam Style:
Hydraulic roller, OE roller
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
Great all-around torque for trucks and other heavy applications; across the board improvements in power over stock active fuel management (AFM) cams.
Basic Operating RPM Range:
1,600-6,300
Intake Duration at 050 inch Lift:
212
Exhaust Duration at 050 inch Lift:
224
Duration at 050 inch Lift:
212 int./224 exh.
Advertised Intake Duration:
275
Advertised Exhaust Duration:
286
Advertised Duration:
275 int./286 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.500 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.500 in.
Valve Lift with Factory Rocker Arm Ratio:
0.500 int./0.500 exh.
Lobe Separation (degrees):
115
Camshaft Gear Attachment:
1-bolt
Remanufactured:
No
Computer-Controlled Compatible:
Yes
Grind Number:
262AFM15
Valve Springs Required:
No
Quantity:
Sold individually.
Notes:
For engines without variable valve timing (VVT), but with active fuel management/displacement on demand (AFM).
COMP Cams XFI AFM GM Gen IV Camshafts
COMP Cams XFI AFM GM Gen IV camshafts are designed to work with the VVT (variable valve timing) and AFM (active fuel management) components of GM V8 engines. They deliver outstanding top-end power in modified L99-style applications without sacrificing low-end power when properly programmed. Get an increase in performance with the lobe profile of COMP Cams XFI AFM GM Gen IV 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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