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Technical Articles for Part Number CCA-11-740-9
Camshaft, Mechanical Roller Tappet, Advertised Duration 321/326, Lift .748/.748, Chevy, Big Block, Each
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Estimated Ship Date from Texas: Tomorrow Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
11-740-9
Part Type:
Product Line:
Summit Racing Part Number:
CCA-11-740-9
UPC:
036584030300
Cam Style:
Solid roller, Retro-fit
Camshaft Use:
Drag race
Basic Operating RPM Range:
5,000-7,500
Intake Duration at 050 inch Lift:
286
Exhaust Duration at 050 inch Lift:
298
Duration at 050 inch Lift:
286 int./298 exh.
Advertised Intake Duration:
321
Advertised Exhaust Duration:
336
Advertised Duration:
321 int./336 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.748 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.748 in.
Valve Lift with Factory Rocker Arm Ratio:
0.748 int./0.748 exh.
Lobe Separation (degrees):
112
Intake Valve Lash:
0.028 in.
Exhaust Valve Lash:
0.030 in.
Remanufactured:
No
Computer-Controlled Compatible:
No
Grind Number:
CB 321JR-12
Valve Springs Required:
Yes
Quantity:
Sold individually.
Notes:
Requires upgraded gear, thrust button, and wear plate.
COMP Cams Drag Race Camshafts
COMP Cams drag race camshafts are offered in four styles: hydraulic flat tappet, hydraulic roller tappet, mechanical roller tappet, and mechanical flat tappet. These cams are ideal for the performance demands of the dragstrip, as well as street, strip, Circle Track, and other applications. Over a hundred models are available; choose the camshaft designed for your vehicle and engine family.
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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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