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Instruction Sheets for Part Number SUM-8700SR5
Summit Racing Equipment® Pro LS Tight-Lash Solid Roller Cams SUM-8700SR5
Part Number: SUM-8700SR5
Summit Racing Equipment® Pro LS Tight-Lash Solid Roller Cams
Pro LS Solid Roller Cam 5, 264 Int. / 272 Exh., 113 LSA + 3 Adv., .707/.707 lift with 1.7 rocker, .749/.749 with 1.8 with SUM-174012DP-16 Springs
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Overview
Brand:
Manufacturer's Part Number:
SUM-8700SR5
Part Type:
Product Line:
Summit Racing Part Number:
SUM-8700SR5
Item Number:
8672227
UPC:
190861380578
Cam Style:
Solid roller, Retro-fit
Camshaft Use:
Circle Track/Drag Race
Camshaft Manufacturers Description:
Pro LS Solid Roller Cam 5, Spintron tested for excellent stability at high rpm. Small-Diameter Light-Weight Duals such as SUM-174012DP-16 .050 out of bind or specially set up beehives .030 out of bind recommended. Ti Intake valve recommended for 7,500+ rpm operation. Min. .005 cold lash ok with .016 Int. / .018 Exh. Hot Lash most common.
Basic Operating RPM Range:
5,500-8,500
Intake Duration at 050 inch Lift:
264
Exhaust Duration at 050 inch Lift:
272
Duration at 050 inch Lift:
264 int./272 exh.
Advertised Intake Duration:
296
Advertised Exhaust Duration:
305
Advertised Duration:
296 int./305 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.707 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.707 in.
Valve Lift with Factory Rocker Arm Ratio:
0.707 int./0.707 exh.
Lobe Separation (degrees):
113
Camshaft Gear Attachment:
3-bolt
Intake Valve Lash:
0.016 in.
Exhaust Valve Lash:
0.018 in.
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Rotation:
Clockwise
Quantity:
Sold individually.
Notes:
Summit LLSR cams are tight lash designs with .016 int. and .018 exh. hot clearance. .005 clearance cold will get them close.
Summit Racing Equipment® Pro LS Tight-Lash Solid Roller Cams
Summit Racing Equipment® Pro LS Tight-Lash Solid Roller cams are made in the USA with advanced cam lobe designs. Special "tight lash" design allows for tighter valve lash settings than traditional solid rollers, reducing valve noise and improving longevity. Durations/LSA/Advance are valve event driven for consistent power and behavior. Lift is set for compatibility with most aftermarket heads or modified factory heads. The Spintron-tested, aggressive lobes provide maximum performance without being excessively hard on the valvetrain. The cams are engineered to be compatible with high-rate Beehives or small-diameter dual-springs, which reduces overall wear and tear on the system. Cam and lobe quality are second to none with hardened bearing steel billets and grinding on a Landis 3L. These cams are suitable for high-performance street, strip, and racing applications, with specific stages available for different power needs. Order the Pro LS Tight-Lash Solid Roller cam for your application.
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Instructions & Calculators
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