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Technical Articles for Part Number CCA-12-366-4
COMP Cams Xtreme Fuel Injected Camshafts
Camshaft, Hydraulic Flat Tappet, Advertised Duration 268/280, Lift .520/.515, Chevy, Small Block, Each
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Estimated Ship Date: Oct 23, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
12-366-4
Part Type:
Product Line:
Summit Racing Part Number:
CCA-12-366-4
UPC:
036584105299
Cam Style:
Hydraulic flat tappet
Camshaft Use:
Street/Strip
Basic Operating RPM Range:
2,000-6,000
Intake Duration at 050 inch Lift:
224
Exhaust Duration at 050 inch Lift:
231
Duration at 050 inch Lift:
224 int./231 exh.
Advertised Intake Duration:
268
Advertised Exhaust Duration:
280
Advertised Duration:
268 int./280 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.520 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.515 in.
Valve Lift with Factory Rocker Arm Ratio:
0.520 int./0.515 exh.
Lobe Separation (degrees):
113
Remanufactured:
No
Computer-Controlled Compatible:
Yes
Grind Number:
268XFI H13
Valve Springs Required:
Yes
Quantity:
Sold individually.
Notes:
Requires exhaust upgrade, larger fuel injector, intake manifold plenum, and custom computer tuning.
COMP Cams Xtreme Fuel Injected Camshafts
COMP Cams Xtreme fuel injected camshafts are designed for late model applications. Ground using faster-opening and more efficient ramp profiles, Xtreme camshafts are engineered for 1.6 ratio rocker arms and beehive valve springs, which provide a dramatic increase in torque and horsepower.
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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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