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Technical Articles for Part Number CCA-12-865-9
Camshaft; Drag Race; Camshaft; Mech. Roller; 4500-7800rpm; Adv. Dur. 307 Int./317 Exh.; Valve Lift .684 Int./.
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Estimated Ship Date: Oct 23, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
12-865-9
Part Type:
Product Line:
Summit Racing Part Number:
CCA-12-865-9
UPC:
036584117322
Cam Style:
Solid roller, Retro-fit
Camshaft Use:
Drag race
Basic Operating RPM Range:
4,500-8,000
Intake Duration at 050 inch Lift:
278
Exhaust Duration at 050 inch Lift:
284
Duration at 050 inch Lift:
278 int./284 exh.
Advertised Intake Duration:
307
Advertised Exhaust Duration:
317
Advertised Duration:
307 int./317 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.684 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.660 in.
Valve Lift with Factory Rocker Arm Ratio:
0.684 int./0.660 exh.
Lobe Separation (degrees):
106
Intake Valve Lash:
0.016 in.
Exhaust Valve Lash:
0.018 in.
Remanufactured:
No
Computer-Controlled Compatible:
No
Grind Number:
307-R6
Valve Springs Required:
Yes
Quantity:
Sold individually.
Notes:
Latest design for use with race heads, 5,500+ stall converter.
COMP Cams Specialty Camshafts
COMP Cams specialty camshafts are available in many applications and camshaft types. No matter what setup you're running--whether you race, cruise, or pull--COMP Cams has the cams for you.
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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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