S&S CYCLE S&S® Super Stock® 3-5/8" Bore O-Ring Style Dual Plug Cylinder Head Kit For '66-'78 HD® Big Twins - Natural Aluminum Finish - 90-1491
S&S® Super Stock® 3-5/8" Bore O-Ring Style Dual Plug Cylinder Head Kit For 1966-'78 HD® Big Twins - Natural Aluminum Finish
- Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve keepers
- Complete kits also include rocker cover gaskets, head gaskets and miscellaneous hardware with instructions
- Use OEM manifolds and exhaust
- Made in the U.S.A.
NOTE: Comes machined for dual plugs and internal oil drains
Fitment Guide
| 1984 | Harley-Davidson | FLHX Electra Glide Special | - | - |
| 1983-1984 | Harley-Davidson | FXSB Low Rider - Belt | - | - |
| 1983 | Harley-Davidson | FLHTC Electra Glide Classic | - | - |
| 1983 | Harley-Davidson | FXDG Disc Glide | - | - |
| 1983 | Harley-Davidson | FXRT Sport Glide | - | - |
| 1983 | Harley-Davidson | Electra Glide Standard FLHT | - | - |
| 1982-1983 | Harley-Davidson | Super Glide II FXRS | - | - |
| 1982-1983 | Harley-Davidson | FXR Super Glide II | - | - |
| 1981-1983 | Harley-Davidson | FLTC Tour Glide Classic | - | - |
| 1981-1982 | Harley-Davidson | Electra Glide Classic FLH | - | - |
| 1981 | Harley-Davidson | FXEF Fat Bob | - | - |
| 1981 | Harley-Davidson | Electra Glide Heritage FLH | - | - |
| 1980-1984 | Harley-Davidson | FXWG Wide Glide | - | - |
| 1980-1983 | Harley-Davidson | FLT Tour Glide | - | - |
| 1980-1982 | Harley-Davidson | FXB Sturgis | - | - |
| 1980-1982 | Harley-Davidson | FLHS Electra Glide Sport | - | - |
| 1980 | Harley-Davidson | Tour Glide Classic FLTC | - | - |
| 1979-1980 | Harley-Davidson | 1200 Super Glide FXE | - | - |
| 1979-1980 | Harley-Davidson | 1200 Fat Bob FXEF | - | - |
| 1979-1980 | Harley-Davidson | Fat Bob FXEF | - | - |
| 1979-1980 | Harley-Davidson | Super Glide 80 FXE | - | - |
| 1979 | Harley-Davidson | 1200 Low Rider FXS | - | - |
| 1979 | Harley-Davidson | Electra Glide FLH | - | - |
| 1979 | Harley-Davidson | Low Rider FXS | - | - |
| 1977-1978, 1980-1982 | Harley-Davidson | FXS Low Rider | - | - |
| 1974-1978, 1981-1984 | Harley-Davidson | FXE Super Glide | - | - |
| 1971-1978 | Harley-Davidson | FX Super Glide | - | - |
| 1970-1978, 1980-1984 | Harley-Davidson | FLH Electra Glide | - | - |
| 1966-1980 | Harley-Davidson | Electra Glide FL | - | - |
| 1966-1969, 1978-1980 | Harley-Davidson | 1200 Electra Glide FLH | - | - |
Specs
| PRODUCT NAME | CYLINDER HEAD KIT |
| STYLE | HIGH COMPRESSION |
| MODEL | SUPER STOCK |
| BASE COLOR | SILVER |
| COLOR/FINISH | ALUMINUM |
| MATERIAL | ALUMINUM |
| BORE SIZE | 3.625" |
| FEATURES | DUAL SPARK PLUG |
| UNITS | KIT |
| RIDING STYLE | STREET |
Delivery Info
Please Note - Warehouse Locations For This Part -
S&S CYCLE S&S® Super Stock® 3-5/8" Bore O-Ring Style Dual Plug Cylinder Head Kit For '66-'78 HD® Big Twins - Natural Aluminum Finish - 90-1491
Gold Coast Warehouse- If your parts are in stock at our Gold Coast warehouse at the time of order, they will be shipped within 24hrs.
Supplier Warehouse - 2-3 Week Delivery- If your parts are located at our Supplier Warehouse, Delivery ETA is approx 2-3 weeks, as the parts are likely coming from our USA supplier warehouse. We will notify you once we receive it in Gold Coast warehouse and its on its way to you.