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Technical Articles for Part Number CCA-12-857-9
COMP Cams Oval Track Camshafts
Camshaft, Oval Track, Mechanical Roller Tappet, RPM Range 3,500-7,500, Advertised Duration 283/287, Chevrolet, Each
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Estimated Ship Date from OH, NV, TX: Today
Overview
Brand:
Manufacturer's Part Number:
12-857-9
Part Type:
Product Line:
Summit Racing Part Number:
CCA-12-857-9
UPC:
036584015383
Cam Style:
Solid roller, Retro-fit
Camshaft Use:
Drag race
Camshaft Manufacturers Description:
355-377 late model with 4 BBL and big heads.
Basic Operating RPM Range:
3,500-7,500
Intake Duration at 050 inch Lift:
255
Exhaust Duration at 050 inch Lift:
259
Duration at 050 inch Lift:
255 int./259 exh.
Advertised Intake Duration:
283
Advertised Exhaust Duration:
287
Advertised Duration:
283 int./287 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.645 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.645 in.
Valve Lift with Factory Rocker Arm Ratio:
0.645 int./0.645 exh.
Lobe Separation (degrees):
106
Camshaft Gear Attachment:
3-bolt
Remanufactured:
No
Computer-Controlled Compatible:
No
Grind Number:
CS 283TK-R6
Valve Springs Required:
Yes
Quantity:
Sold individually.
COMP Cams Oval Track Camshafts
COMP Cams oval track camshafts are designed specifically for racing applications. They are available to complement a variety of engine configurations, track lengths, and conditions--simply order the model that fits the needs of your particular make and model. Before you start the next oval track race, install the winning camshaft edge from COMP Cams.
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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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