S&S Cycle

PERFORMANCE KIT OVERVIEW FOR VINTAGE HARLEY-DAVIDSON ® MODELS SIDEWINDER® BIG BORE KITS FOR 1966–'84 BIG TWINS Sidewinder big bore/stroker kits are available in displacements from 88" to 103". The 35/8" bore cylinders are coupled with strokes from 41/4" to 5" to yield the various displacements (See page 114 ). The most popular and highly recommended Sidewinder Kit is the 93" (35/8" bore X 41/2" stroke). This is also available as a Hot Set Up Kit which includes everything you need to achieve the potential of the increased displacement (See page 118 ). STOCK BORE STROKER KITS FOR 1936–'84 BIG TWINS AND IRONHEAD SPORTSTER® Stock bore stroker kits were the original solution to attaining more cubic inches back in the day. They are still popular today because of they produce good power for less money. Stock bore strokers reuse most of the components of the stock engine, and don't require expensive crankcase machining so installation is also economical. Stroker kits are available for knuckles, pans, and shovels in 84" to 88" displacement. By far the 84" stroker is the most popular and is available as a Hot Set Up Kit. The Hot Set Up Kit comes with cam, carb pushrods, and valve springs that will allow you to take full advantage of the displacement increase (See page 115 ). There is a 74" stroker for Ironhead Sportster that has been a favorite since the 1970s (See page 116 ). Order the basic kit or configure your own Hot Set Up Kit with the CTO number. RETRO CONVERSION KIT FOR 1966–'84 BIG TWINS Give your shovel the nostalgic look of a panhead, gain performance, and upgrade to modern 1984–'99 style hydraulic valve train with one simple to install kit. (See page 117 ) TOP END REPLACEMENT KITS FOR 1966–'84 BIG TWINS Restore that tired iron with a bolt-on Top End Replacement kit. Kit includes cylinders, pistons, cylinder heads and all gaskets and hardware. Available for 74" and 80" engines. (See page 119 )

SIDEWINDER ® BIG BORE KITS FOR 1966–'84 BIG TWIN ENGINES FITMENT • 1966–’84 big twins

FEATURES AND BENEFITS • Increase displacement and power

• High strength cast iron cylinders with increased cooling fin area • Stock like appearance—durable black powder coat finish • Easy installation • Long engine life, good dependability

S&S® SIDEWINDER® BIG BORE KIT SPECIFICATIONS FOR 1966–’84 BIG TWINS

Recommended Cam (Stock Valve Train*)

Recommended Cam (S&S Valve Train**)

Displacement

Bore 35/8" 35/8" 35/8" 35/8" 35/8" 35/8"

Stroke Compression Ratio Cylinder Length

Recommended Carb

88" 93"

41/4" 41/2" 41/2" 45/8" 43/4"

7.5:1 8.5:1 9.1:1 9.1:1 8.9:1 9.7:1

5.330" 5.405" 5.363" 5.440" 5.530" 5.630"

S&S 514 S&S 514 S&S 560S S&S 560S S&S 560S S&S 560S

S&S 585 S&S 585 S&S 600 S&S 600 S&S 600 S&S 600

Super E Super E Super E Super E Super E

93" HC

96" 98"

103"

5"

Super E or G

*1966–'84 style cams for valve train with stock style tappets **1984–'99 style cams for S&S valve train conversion kit with 1984-'99 style tappets

COMPLETE S&S® SIDEWINDER® KITS FOR SHOVELHEAD ENGINES Displacement 93" 93" HC

96"

98"

103"

1970–’84 91-9140 DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACT These kits require manifolds, see page 162. 91-9126 91-9130 91-9134 91-9138

114 S&S Vintage 1926–1999 Order 608-627-1497