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Uh oh - Our system doesn't think this part will fit your 2024 Yamaha YZ450F 50th Anniversary Edition (change vehicle selection)

S&S Cycle

S&S Cycle 520 Cam For Harley Big Twin Evo 1984-1999

Item: P274057

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S&S Cycle 520 Cam For Harley Big Twin Evo 1984-1999 Installation

Installation (pdf)

S&S Cycle 520 Camshaft For Harley Big Twin Evo

S&S has spent decades building faster Harley-Davidson motorcycles, and its camshaft development is well established. For riders seeking more power, a cam is one of the most effective upgrades, especially after common bolt-on modifications are already in place. An S&S cam helps tailor the engine's character to the rider's style while improving overall performance.

Features:

S&S cams are tested on the dyno, street and track before being offered to the public
With hundreds of hours of testing on each cam, you know you are getting the best cam S&S can produce
Made in the USA

520 Cam Info:

Works well in all size motors up to 10:1 compression
Short-duration emissions cam with very little overlap to reduce unburned hydrocarbons
Makes best power in low to mid-range
1000 RPM-4500 RPM
Intake open/close 0°/40°
Exhaust open/close 50°/2°
Intake duration 220°
Exhaust duration 232°
Lift .520"

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Uh oh - Our system doesn't think this part will fit your 2024 Yamaha YZ450F 50th Anniversary Edition (change vehicle selection)

Fitment Notes & Exceptions

This product is not legal for street use on an emissions-controlled vehicle. It may be used on dedicated competition or pre-pollution-controlled vehicles only.

Installer must check for coil bind, valve-to-valve clearance, valve-to-piston clearance, and cam lobe to case clearance
Cam bearings and gaskets must be replaced when installing new cams
Works with hydraulic lifters
High-lift valve springs are required to run this cam in all models
It is the installer / riders responsibility to check all clearances.

Harley Davidson: Disc Glide FXRDG 1984; Dyna Convertible FXDS 1994, 1995, 1996, 1997, 1998; Dyna Glide Custom FXDC 1992; Dyna Glide Daytona FXDB-D 1992; Dyna Glide Sturgis FXDB-S 1991; Dyna Low Rider FXDL/I 1993-1998; Dyna Super Glide FXD/I 1995, 1996, 1997, 1998; Dyna Wide Glide FXDWG/I 1993-1998; Electra Glide Classic FLHTC/I 1984-1998; Electra Glide Special FLHX 1984; Electra Glide Sport FLHS 1984-1993; Electra Glide Standard FLHT/I 1984-1998; Electra Glide Ultra Classic FLHTCU/I 1989-1998; Fat Bob FXEF 1985; FLH 1984, 1985; Low Glide/Low Rider FXRS 1984-1993; Low Rider Chrome FXRC 1985, 1986, 1987, 1988; Low Rider Custom FXLR 1987-1994; Low Rider Sport FXRS-SP 1987-1993; Road Glide FLTR/I 1998; Road King Classic FLHRC/I 1998; Road King FLHR/I 1994, 1995, 1996, 1997, 1998; Softail Bad Boy Springer FXSTSB 1995, 1996, 1997; Softail Custom FXSTC/I 1986-1999; Softail Deuce FXSTD/I 1999; Softail Fat Boy FLSTF/I 1990-1999; Softail Heritage Classic FLSTC/I 1987-1999; Softail Heritage FLST/I 1986, 1987, 1988, 1989, 1990; Softail Heritage Springer FLSTS/I 1997, 1998, 1999; Softail Night Train FXSTB/I 1999; Softail Nostalgia FLSTN/I 1993; Softail Special FLSTN/I 1994, 1995, 1996; Softail Springer FXSTS/I 1988-1999; Softail Standard FXST/I 1984-1999; Sport Glide FXRT 1984-1992; Sport Glide Grand Touring FXRD 1986; Super Glide FXE 1984, 1985; Super Glide FXR 1994; Tour Glide Classic FLTC/I 1984-1991; Tour Glide FLT 1984, 1985, 1986; Tour Glide Ultra Classic FLTCU/I 1989-1996; Wide Glide FXWG 1984, 1985, 1986

Product Style	Item #	Store SKU	Manufacturer Product #	Availability
Product Style S&S Cycle 520 Cam For Harley Big Twin Evo 1984-1999	Item # 959716	Store SKU	Manufacturer Product # 33-5073	Availability In Stock: Ships next business day

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