S&S Cycle - S&S Performance Parts 2025 L - Volume 67

2007-'17

www.sscycle.com

124" HOT SET UP KIT Ready for the ultimate? The 124" HSU kit will take you to the limit increasing both your bore and stroke The included flywheel increases the stroke from 4 3/8" to 4 5/8" The kit’s cylinders open the stock 3 ¾" bore to 4 1/8" S&S Easy Start 640 gear drive camshafts are included! Kits are available for balanced and unbalanced engines CTO allows you to select other camshaft and cylinder head options to build the ultimate kit of your dreams Your crankcase will require machining for these cylinder spigots to fit Fuel injection tuning required 4" BORE BOLT-IN SIDEWINDER® BIG BORE KIT S&S 4" big bore cylinder and piston kits boost 88 and 96/103" Harley-Davidson® big twin engines to 100" and 110" respectively These bolt-in kits don’t require any machining, rebalancing or engine removal, and include just about everything you’ll need to complete the installation The biggest cylinder bore that can be installed in a stock crankcase without machining! 117" BIG BORE KIT The S&S 117" big bore top end kit, for 96" and 103" engines, is an economical route to big inches and increased performance Use the stock crankcases, flywheel assembly, and cylinder heads for a stock look and a smaller price tag Crankcase boring is required to accom modate the larger 4 1/8 " bore cylinders Finish the conversion off with your choice of performance cams, fuel system upgrade, and tuning Available in dished dome or flat topped pistons and in wrinkle black or silver powder coat finish that matches the stock heads and cases 107" & 106" BIG BORE KIT A low cost bolt-on kit provides big displacement! The 107" and 106" Big Bore Kits offer the simplicity of a bolt-on cylinder kit Satisfy your thirst for speed! Bore is increased from 3 750" to 3 927", taking your displacement from 96" or 103" to 106"! The kit contains cylinders, pistons, rings and all gaskets needed Fuel injection tuning required

1 -2017-UP 2- 2007-'17 3 -1999-'06 4 -1984-'99 5 -1936-'84 6 -XL-RA1250 7 -BELTS & GASKETS 8 -TOOLS 9 -WARRANTY 10 -APPENDIX 2-30

Performance Kit Specifications For Harley-Davidson® Twin Cam 96™/103™/110™

Compression Ratio

Horsepower

Torque

Stock Heads

Kit Description Bore

Stroke

CNC Heads

Camshaft

79cc

89cc 91cc

(CNC Heads)

83cc

85cc

87cc

90cc

Power Pack

4"

43/8" 105 111 102 99 107 105 103 10

585

110

119

124" Hot Set Up Kit (Flat Top Piston)

4 1/8"

4 5/8" 11 4:1 *

11:1 10 8:1 11 6:1 11 4:1 11 2:1 10 9:1 640

127

130

106" Big Bore Kit 3 927"

4 3/8" 10 0:1 10 7:1 9 7:1 9 5:1 10 2-1 10 1:1 9 9:1 9 6:1 –

106

108

*Not Recommended

Performance Kit Contents, Options And Requirements For Harley-Davidson® Twin Cam 96™/103™/110™

Package Contents

Rejetting Or Calibration Change

Machining Required

Kit Description

Fly wheels

Pistons w/rings

Rocker Arms

Pushrods w/covers

Valve Springs

Heads w/springs

Cylinders

Lifters

Camshafts

Gaskets

•

•

•

•

Power Pack

0

3,4

•

•

•

•

•

•

•

•

•

124" Hot Set Up Kit

0

3,4

• •

• •

• •

• •

117" Big Bore Kit 106" Big Bore Kit

1 = Optional 2 = Order separately 3 = Bore & hone cylinders

3= Crankcase machining for center stud 4 = Crankcase machining for cylinder spigots 5 = Camshaft selection

6 = CNC heads 7 = Combustion chamber size selection 8 = Cylinder & piston set available

*The CTO option column lists only the major items offered. Virtually any option can be selected from our product offerings through the Configure To Order (CTO) program.