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Charts & Guides for Part Number SUM-8703
Technical Articles for Part Number SUM-8703
Summit Racing™ Pro LS Single Plane Camshafts
Summit Racing™ Stage 4 Pro LS Single Plane Cam, 240/252 106 +0, .569 Lift, LS1 LS2 LS6 LS3 LS7 LQ4, Each
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Overview
Brand:
Manufacturer's Part Number:
SUM-8703
Part Type:
Product Line:
Summit Racing Part Number:
SUM-8703
UPC:
190861138933
Cam Style:
Hydraulic roller, OE roller
Camshaft Use:
Racing
Camshaft Manufacturers Description:
The Summit Stage 4 Single Plane cam has an extremely aggressive lope and works best in larger cubic inch engines with open headers. Pistons with valve reliefs will be required.
Basic Operating RPM Range:
2,500-6,500
Intake Duration at 050 inch Lift:
240
Exhaust Duration at 050 inch Lift:
252
Duration at 050 inch Lift:
240 int./252 exh.
Advertised Intake Duration:
299
Advertised Exhaust Duration:
311
Advertised Duration:
299 int./311 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.569 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.569 in.
Valve Lift with Factory Rocker Arm Ratio:
0.569 int./0.569 exh.
Lobe Separation (degrees):
106
Camshaft Gear Attachment:
3-bolt
Remanufactured:
No
Computer-Controlled Compatible:
Yes
Valve Springs Required:
Yes
Quantity:
Sold individually.
Notes:
Not for AFM or VVT equipped engines. Summit Pro LS cams are designed for engines swapped into pre-pollution controlled vehicles. They are not for use in registered emissions-controlled vehicles operated on public highways and roads. 3-bolt camshaft, computer tuning required.
Summit Racing™ Pro LS Single Plane Camshafts
Summit Racing™ Pro LS Single Plane cams are affordable and designed for racing applications where a carburetor and open exhaust are commonly found. These cams have slightly narrower lobe separation to increase torque and compliment short runner intakes. They come in distinct cam timing increments to give you maximum control over the power band. They're also designed with longevity in mind by taking stress off the valvetrain. These lobes remain stable to over 7,000 rpm with a common .600 and .670 lift dual spring kits.
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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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