Cam, S&S 561 Big Twin Evo All Years 33-5076

MID-66835

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Cam, S&S 561 Big Twin Evo All Years 33-5076
508 Cam - Bolt-in cam intended for stock engines with less than 10:1 compression ratio. Quiet valve train with excellent low/mid range torque for touring and 2 up riding

510V Cam - 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

561 Cam - or 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 rpmS&S
561 Cam
Fits Big Twin Evolution 1984/1988
Valve timing close/open: Intake - 32o/40o , exhaust - 50o/26o
Valve duration: Intake - 252o, exhaust - 256o
Valve lift .560
Lift @ TDC: Intake - .252, exhaust - .210
Spring spacing required
Requires hydraulic tappet
Cam, S&S 561 Big Twin Evo All Years 33-5076 Harley Mid-USA - K and G Cycles