S&S CYCLE T143” TWIN CAM A CRATE ENGINE HARLEY DAVIDSON

S&S CYCLE T143" TWIN CAM A CRATE ENGINE HARLEY DAVIDSON

The S&S T143 is the largest S&S engine that fits in a stock Harley-Davidson® chassis — fits 2008–2016 HD Touring bikes (except Twin-Cooled models). At double the HP of a stock motor, the T143 is an ultra-performance/race engine requiring technical expertise for installation and tuning, and an experienced rider. Longevity, engine noise, vibration, and throttle sensitivity have all been compromised to reach this level of performance. Engine noise and damage from abuse is not covered under warranty. It is the purchaser's responsibility to consider suitability for their application.

*T-Series engines are NOT compatible with HD Softail models.*

Included with This Engine

• S&S B3 cylinder heads — CNC machined with 2-bolt exhaust flanges
• S&S Super Stock T2 crankcases with reed breather valve
• 3-piece flywheels
• S&S TC3 cam plate and oil pump
• S&S 635 Easy Start gear drive cams
• S&S 1.75:1 rocker arms for .674" total lift
• S&S Premium High Performance tappets
• Wrinkle black powder coat finish

Separately Required — Not Included

• Special fuel system — available from S&S; must be purchased separately
• Oil line kit — required; must be purchased separately
• Ignition/tuner — not included; professional ECU calibration required
• ⚠️ CONFIRM: Verify with your installer all required chassis hardware, primary components, and any additional supporting parts for your specific year

Tuning & Ignition

• Fuel system not included — special S&S fuel system available; must be purchased separately
• Professional ECU/tuner calibration is required — this is a race-level engine; improper tuning will cause engine damage
• Professional dyno tuning by an experienced technician is mandatory
• ⚠️ CONFIRM: Confirm your tuner’s experience with high-displacement S&S builds before purchasing

Installation Scope

• Fits 2008–2016 HD Touring models in stock chassis — no cutting or frame modifications required
• NOT compatible with HD Softail models
• NOT compatible with Twin-Cooled models
• Requires technical expertise for installation — not a beginner install
• ⚠️ CONFIRM: Professional installation by an experienced high-performance engine builder is mandatory

Manufacturer Warranty

• 1-year parts warranty (as stated in product documentation)
• Engine noise and damage from abuse is explicitly excluded from warranty coverage
• ⚠️ CONFIRM: Verify full warranty terms and conditions directly with S&S Cycle before purchase

Current Lead Time

• ⚠️ CONFIRM: Lead time not confirmed — contact us before ordering to verify current availability and estimated ship date

Pre-Purchase Confirmation

Before placing your order, please confirm the following with our team:

• This engine is compatible with your 2008–2016 HD Touring model (not Softail, not Twin-Cooled)
• You have the S&S special fuel system and oil line kit sourced (both required, not included)
• You have an experienced high-performance installer and dyno tuner lined up
• You understand this is a race-level engine with compromised streetability and restricted warranty
• You understand current lead time and warranty terms

Contact us to confirm compatibility and availability before purchasing.