S&S Cycle

1999–2006 big twins

T143 ENGINES

96 ™ /103 ™ /110 ™ Street Rod ™ Milwaukee-Eight ® 1999–2006 Twin Cam 88 ® 1986–2019 Sportster ® & Buell ® Indian ® Models

The BIGGEST, BADDEST, BOLT-IN for a Stock Frame. The S&S T143 Long Block engine is the largest S&S engine that will fit in a stock Harley-Davidson® chassis. At double the HP of a stock motor the power of the T143 requires technical expertise for the installation and tuning along with an experienced rider. This is an ultra performance/race engine. Longevity, engine noise, vibration and throttle sensitivity have all been compromised to reach this level of performance while fitting in a stock chassis and as such is not suitable for every situation. It is the purchaser's responsibility to consider the suitability for their application. Engine noise and damage from abuse is not covered under warranty. FITMENT FEATURES AND BENEFITS • Fits in stock chassis – no cutting or frame modifications • S&S B3 cylinder heads CNC machined with 2 bolt exhaust flanges • 3 Piece Flywheels • TC3 Oil Pump and Cam Plate • S&S 635 Easy Start Gear Drive Cams and S&S 1.725:1 rocker arms for .674" total lift. • S&S Precision Tappets • 1999–2006 Harley-Davidson® touring models • 1999–2005 Harley-Davidson® Dyna® models

2007–2017 Twin Cam

SUGGESTED ACCESSORIES • Stealth Air Cleaner Kit 143 Cover See page 158

2014–2019 Street ® &

110-0120

110-0119

170-0288

T143 ENGINES WITHOUT FUEL AND IGNITION SYSTEMS Chassis Style Displacement

Compression Ratio

Warranty Period

Bore Stroke Cam Piston Type

Finish

Part #

Wrinkle Black 310-0737A Silver 310-0738A

1999–'06 touring models 1999–'05 Dyna® models

S&S Forged Flat Top

143"

4.425" 4.625" 635

10.47:1

1 year

1999–2006 bt (except '06 Dyna®)

Black Edition 310-0833A DISCLAIMER: FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACT.

Tools & Shop Supplies

OIL LINE INSTALLATION KIT. See chart.

INSTALLATION PARTS Description

Part #

Description

Part #

31-0425 31-0424 110-0120

Warranty & Company Policy

170-0289

2002–'05 Dyna® & touring models

Touring models Dyna® models

Oil Line Kit

70mm Induction Kit

170-0288

2006–'07 touring models

Super G Carburetor Kit w/air cleaner* Super D Carburetor Kit w/air cleaner*

110-0119 *Air cleaner assemblies included with these carburetor kits do not include air cleaner covers. Stock 1999-later air cleaner or any S&S Stealth air cleaner covers may be used.

Index

Appendix &

T-Series engines are not compatible with HD® Softail® models. No fuel system available for 1999–2001 Magnetti Morelli EFI models

NOTES

169