Page 515

2016roadiron

515 490HP : Hydraulic Bolt-In. Designed for speed or touring. Works well with engine modifications. Works best with 9.5:1 compression ratio. Can be used with stock compression in lighter bikes . Basic rpm 1800-5800 490MR : Hydraulic Bolt-In Street performance for heavier bikes that are slightly modified. Can be used with stock compression or increased up to 9.5:1. Complements exhaust and intake modifications. No valve spring change required. Basic rpm 1500-5500 508 : Bolt-in cam intended for stock engines with less than 10:1 compression ratio. Quiet valvetrain with excellent low/mid-range torque for touring and 2 up riding S&S 585V camshaft for 84-’99 Big Twin style engines. Cam Kit Selection Chart 450S 514 48-69 50-5062 50-5050 70-77 50-5063 50-5051 78-84 50-5064 50-5052 S&S® Camshafts for evolution engines With the exception of the bolt-in 510V camshafts, S&S cams are high lift and designed to take advantage of the extra flow of ported stock heads or S&S Super Stock® heads. Due to the high lift of these cams, S&S adjustable pushrods and high performance valve springs are recommended. Fitment • 84–99 big twins Applications 510V: Bolt-in cam that works well with stock or ported heads. Improved ramp design results in low valve train noise. Meant for engines up to 96” and 10:1 compression ratio. 3000-5000 rpm. 546 Cam: Intended as a replacement part for S&S emissions certified engines, this is a short duration emissions cam with very little overlap to reduce emissions of unburned hydrocarbons. Requires high lift springs and normal clearance checks. 1000-4000 rpm (111”-124”). 561 Cam: For 80-96 engines at 9.5:1–10.5:1 compression ratio. Provides strong midrange power. 3000-5500 rpm. 585V Cam: A versatile cam for 80-96 engines with 10:1-10.5:1 compression, and larger engines with 9.5:1-10:1 compression ratios. 3500- 6000 rpm. 600 Cam: An exceptional cam in any large displacement engine with 9.5:1 to 10.5:1 compression. 3500-6000 rpm. 490LR : Hydraulic Bolt-In. Designed for broad power range improvement. Good choice for heavy bikes and trailer towing. Increases low and mid-range performance. Works well with stock compression ratio and stock exhaust. No valve spring change required. Basic rpm Idle-5000 CAM Name Valve Timming (open/close) Intake Valve Timming (open/close) Exhaust Valve Duration Intake Valve Duration Exhaust Valve Lift TDC lift Int. TDC lift Exh Spring Spacing Required Tappet Type Required 490HP 19°/43° 48°/24° 236° 242° .490" .176" .203" No Hydraulic 50-3300372 490LR 12°/34° 41°/15° 226° 236° .490" .146" .157" No Hydraulic 50-3300371 490MR 19°/37° 46°/16° 236° 242° .490" .184" .162" No Hydraulic 50-3300373 508 11°/25° 50°/5° 217° 235° .508" .141" .110" No Hydraulic 50-3300093 510V 20°/38° 52°/20° 238° 252° .510" .187" .178" No Hydraulic 50-5074 546 5°/55° 52°/5° 240° 237° .546" .126" .106" Yes Hydraulic 50-5072 561 32°/40° 50°/26° 252° 256° .560" .252" .210" Yes Hydraulic 50-5076C 585V 20°/45° 60°/20° 245° 260° .585" .186" .180" Yes Hydraulic 50-335109 600 20°/55° 60°/20° 255° 260° .600" .192" .184" Yes Hydraulic 50-335058 Timing designation is function of zero lash @ .053” off base circle. Lifts @ TDC are measured at the valve and are for reference only. Overlap valve lifts must be checked on assembled motors.


2016roadiron
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