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S&S Cycle

S&S Cycle Cylinder Heads For Harley Big Twin Evo 1984-1999

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Blemished/Refurbished

This item is available as a Blem/Refurb. These are items that cannot be sold as "New" merchandise and are limited to stock on hand. See the product details for a description of the product's condition.

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S&S Cycle Cylinder Heads For Harley Big Twin Evo 1984-1999 Instructions

Instructions (pdf)

S&S Cycle Cylinder Heads For Harley Big Twin Evo

Upgrade your ride with a serious boost in performance. These heads are seamlessly compatible with stock flat top pistons; offering a simple way to enhance power without needing advanced mechanical skills. Just install them and experience the upgrade. While perfectly operable with your stock setup, coupling these heads with a quality exhaust, air cleaner, and a more aggressive cam can maximize their potential — S&S has fitted them with high-lift springs to accommodate the greater demands. Although not essential, incorporating adjustable pushrods can complement this upgrade nicely. Remember, sealing the deal with the right gaskets is crucial.

Features:

Kits are fully assembled, and include stainless steel valves and high-lift (.585") springs
Optimized for smaller displacement engines
Slight increase in compression (8.8:1 in an 80" motor) with 82cc chamber volume
Port design increases flow while maintaining velocity
Set up for .585" maximum lift
EFI compatible
Available in silver powder-coat or black powder-coat finish
Sold in pairs
Made in the USA

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This product is vehicle specific. Click here to select your vehicle to ensure fitment.

Fitment Notes & Exceptions

It is the responsibility to assemble correctly, including performing all clearance checks

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 Black	Item # 959936	Store SKU	Manufacturer Product # 106-4570	Availability In Stock: Ships within 24 hours
Product Style Silver	Item # 959935	Store SKU	Manufacturer Product # 106-3466	Availability In Stock: Ships within 24 hours

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