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Technical Articles for Part Number CCA-12-464-8
COMP Cams Xtreme Fuel Injected Camshafts
Camshaft, Hydraulic Roller Tappet, Advertised Duration 252/264, Lift .550/.546, 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:
12-464-8
Part Type:
Product Line:
Summit Racing Part Number:
CCA-12-464-8
UPC:
036584105343
Cam Style:
Hydraulic roller, Retro-fit
Camshaft Use:
Street/Strip
Basic Operating RPM Range:
1,000-5,000
Intake Duration at 050 inch Lift:
202
Exhaust Duration at 050 inch Lift:
212
Duration at 050 inch Lift:
202 int./212 exh.
Advertised Intake Duration:
252
Advertised Exhaust Duration:
264
Advertised Duration:
252 int./264 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.550 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.546 in.
Valve Lift with Factory Rocker Arm Ratio:
0.550 int./0.546 exh.
Lobe Separation (degrees):
113
Remanufactured:
No
Computer-Controlled Compatible:
Yes
Grind Number:
252XFI HR13
Valve Springs Required:
Yes
Quantity:
Sold individually.
Notes:
Retro-fit: Designed for early non-roller blocks. Requires thrust button and wear plate.
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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