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Instruction Sheets for Part Number CCA-11-678-5
Technical Articles for Part Number CCA-11-678-5
COMP Cams Xtreme Energy Camshafts
Camshaft, Mechanical Flat Tappet, Advertised Duration 282/290, Lift .590/.598, Chevy, Big Block, Each
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Estimated Ship Date: Mar 30, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
11-678-5
Part Type:
Product Line:
Summit Racing Part Number:
CCA-11-678-5
UPC:
036584070344
Cam Style:
Solid flat tappet
Camshaft Use:
Street/Strip
Basic Operating RPM Range:
2,400-6,800
Intake Duration at 050 inch Lift:
244
Exhaust Duration at 050 inch Lift:
252
Duration at 050 inch Lift:
244 int./252 exh.
Advertised Intake Duration:
282
Advertised Exhaust Duration:
290
Advertised Duration:
282 int./290 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.590 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.598 in.
Valve Lift with Factory Rocker Arm Ratio:
0.590 int./0.598 exh.
Lobe Separation (degrees):
110
Intake Valve Lash:
0.016 in.
Exhaust Valve Lash:
0.016 in.
Remanufactured:
No
Computer-Controlled Compatible:
No
Grind Number:
CB XS282S-10
Valve Springs Required:
Yes
Quantity:
Sold individually.
COMP Cams Xtreme Energy Camshafts
COMP Cams Xtreme Energy camshafts employ the latest cam technology to provide maximum performance. Whether your use is off-roading, towing, or street performance, there's an Xtreme Energy cam available for you. By using an aggressive lobe profile, these cams provide better throttle response and more top-end horsepower than equivalent cams from other manufacturers—while delivering increased engine vacuum. Hundreds of models are available for fitment on vehicles from 1955 to the present. Select the cam designed for your application.
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Some parts are not legal for use in California or other states with similar laws / regulations
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