S&S Cycle T143 Assembled Long Block — Select 1999–2006 Big Twins — Wrinkle Black
S&S Cycle T143 Assembled Long Block — Select 1999–2006 Big Twins — Wrinkle Black
S&S Cycle T143 assembled long block engine in wrinkle-black powder coat for select 1999–2006 Harley-Davidson Big Twin applications. This 143-cubic-inch ultra-performance/race engine requires technical expertise for installation and tuning and an experienced rider.
- Designed to fit a compatible stock chassis without cutting or frame modifications
- CNC-machined S&S B3 cylinder heads with two-bolt exhaust flanges
- S&S Super Stock crankcases with reed breather valve
- Three-piece flywheels
- S&S TC3 cam plate and oil pump
- S&S 635 Easy Start gear-drive cams
- S&S 1.725:1 rocker arms for 0.674-inch total lift
- S&S premium high-performance tappets
- one-year warranty
Fitment needs confirmation: the product title excludes 2006 Dyna models, while its description more broadly excludes Dyna models. Confirm exact compatibility directly before ordering. T-series engines are not compatible with Softail models.
Installation requirements: Requires an oil line kit, purchased separately. A special fuel system is available separately.
Performance notice: Longevity, engine noise, vibration, and throttle sensitivity involve compromises to achieve this performance level. This engine is not suitable for every application. engine noise and damage from abuse are not covered under warranty.
Shipping: Contact JL Customs to confirm freight charges and delivery requirements before ordering.
Restrictions: This engine is not legal for sale or use in California on pollution-controlled motor vehicles.
Warning: This product can expose you to chemicals, including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Part number: 310-0737A.