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S&S Cycle T143 Long Block Silver Engine

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  • S&S Cycle T143 Long Block Silver Engine
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J&P Part: 743-817

Description for S&S Cycle T143 Long Block Silver Engine 

S&S Cycle T143 Long Block Silver Engine

• Fits in stock chassis - no cutting or frame modifications

• S&S Cycle B3 cylinder heads CNC machined with 2 bolt exhaust flanges

• 3 Piece Flywheels

• S&S Cycle high flow oil pump and cam cover

• S&S Cycle 635 Easy Start Gear Drive Cams and S&S Cycle 1.725:1 rocker arms for .674" total lift.

• S&S Cycle Premium High Performance Tappets

• Requires S&S Cycle Super G 743-813 or Super D 743-812 carburetor kit which includes the carburetor, manifold, air cleaner kit, and all hardware required.

• For improved ridability, S&S Cycle recommends the Super G carburetor. It has better low RPM throttle response and offers better control in lower RPM applications.

• The Super D carb kit is recommended for race applications where high RPM horsepower is the most important factor.

• The Super D carb kit is not recommended for use on Touring models. The length of the carburetor and air cleaner assembly makes it very hard to reach the rear brake pedal.

Recommended for Dyna models with mid controls only.

• S&S Cycle T143 engines must not be run with a stock ignition system. A special ignition advance curve is required to prevent serious engine damage.

• S&S Cycle recommends the Dynatek 380-994 ignition system for 1999-'03 models, and the Dynatek 382-359 for 2004-'06 models. The Dynatek Programming Kit 382-664 allows S&S Cycle ignition calibrations to be loaded directly into the module from your PC.

• Ignition calibration files for the T143 engine with a Dynatek ignition are available on the S&S Cycle website under the Tech Info tab.

• Recommended Touring model exhaust are Bassani 743-819 or 743-820

• Dyna Models - Require custom exhaust. We recommend S&S Cycle exhaust flange kit - 743-818 as a starting point for building a custom exhaust system.

• 1 Year Warranty

Made In The USA This product was proudly made in the USA

Product Specs

Assembly: Comes Assembled

Bore Size: 4.425"

Compression Ratio: 10.47:1

Cylinder Bore Size: 4.425"

Displacement Size CC: 143"

Displacement Size CI: 143"

Finish: Silver

Ignition: No

Manufacturer Part Number: 310-0738

Single or Dual Plugs: Single Plug

Sold in Units: assembly

Stroke: 4.625"

With/Without Carb: Without

Fitment for S&S Cycle T143 Long Block Silver Engine 

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Harley-Davidson® Models

Touring Electra Glide Classic FLHTC : 1999–2006
Touring Electra Glide Police FLHTP : 1999–2001, 2004–2006
Touring Electra Glide Police FLHTPI : 2002–2003
Touring Electra Glide Standard FLHT : 1999–2006
Touring Electra Glide Ultra Classic FLHTCU : 2005
Touring Road Glide FLTR : 1999–2006
Touring Road King Custom FLHRS : 2004–2006
Touring Road King FLHR : 1999–2006
Touring Road King Police FLHP : 1999–2001, 2004
Touring Road King Police FLHPI : 2002–2003
Touring Street Glide FLHX : 2006

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Shipping Note

Due to safety regulations, this item can only be shipped via UPS Ground within the contiguous U.S. It cannot be shipped using any of our Worldwide shipping options. An additional shipping charge of $125.00 will be applied for shipments within the contiguous U.S. Shipping charges outside the contiguous U.S. are calculated by weight and dimension during checkout.

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