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Charts & Guides for Part Number SUM-8735R1
Summit Racing™ Pro LS Automotive Camshafts
Pro LS CT1, 234/248 Duration, 113.5 LSA + 3.5 Adv, .550I/.550E Lift, 3-Bolt, Compatible with SUM-174002 LS6 Springs. 5.3, 5.7, 6.0, 6.2, 7.0
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Overview
Brand:
Manufacturer's Part Number:
SUM-8735R1
Part Type:
Product Line:
Summit Racing Part Number:
SUM-8735R1
UPC:
190861357068
Cam Style:
Hydraulic roller, OE roller
Camshaft Use:
Circle Track/Drag Race
Camshaft Manufacturers Description:
SUM-8735R1 is a .550 lift version of our famed SUM-8711R1. It's generally the largest cam that fits without flycutting if a head is milled .030 in. It's designed to work with our inexpensive SUM-174002 valve springs. Great power and often used as a Spec Cam in Circle Track or road racing to keep the cam package cost down without loss of durability. Choppy idle. Headers and free flowing mufflers a plus.
Basic Operating RPM Range:
4,800-7,200
Intake Duration at 050 inch Lift:
234
Exhaust Duration at 050 inch Lift:
248
Duration at 050 inch Lift:
234 int./248 exh.
Advertised Intake Duration:
284
Advertised Exhaust Duration:
295
Advertised Duration:
284 int./295 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.550 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.550 in.
Valve Lift with Factory Rocker Arm Ratio:
0.550 int./0.550 exh.
Lobe Separation (degrees):
113.5
Camshaft Gear Attachment:
3-bolt
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Rotation:
Clockwise
Quantity:
Sold individually.
Notes:
Lobe separation and advance is 113.5+3.5.
Summit Racing™ Pro LS Automotive Camshafts
Summit Racing™ Pro LS Automotive cams are affordable and designed in stages with very specific cam timing for each individual application in cathedral and rectangle port versions. This ensures maximum performance and gives you the idle you are looking for. The lobes are designed for stability at high rpm with the spring pressures found in quality .600 and .670 in. spring packs. Careful design guarantees the cams can be installed with minimal difficulty. Although piston to valve clearance should always be verified, the Stage 2 and 3 cams often allow for additional cylinder head milling. The Stage 4 cams often require no changes but can be degreed slightly different as needed. Starting with American bearing steel, they are precision machined on a Landis 3LB CNC grinder with CBN diamond wheels for unmatched quality.
Applications
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Some parts are not legal for use in California or other states with similar laws / regulations
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