S&S Cycle T143 Long Block Engine - 143ci - Black - 310-0901A

Unleash extreme power with the S&S Cycle T143 Long Block Engine. This powerhouse is designed for riders seeking maximum performance and reliability. Built with premium components and precision engineering, the T143 delivers unparalleled torque and horsepower.

Description

The S&S Cycle T143 Long Block Engine is a high-performance upgrade that transforms your motorcycle's capabilities. Featuring S&S B3 cylinder heads with CNC-machined two-bolt exhaust flanges and S&S 635 easy-start gear drive cams, this engine offers exceptional airflow and smooth operation. The 1.725:1 rocker arms provide a substantial .674" total lift for improved valve action. Built around S&S Super Stock™ T2 crankcases with a reed breather valve and three-piece flywheels, the T143 ensures durability and efficient crankcase scavenging. The high-flow oil pump and cam cover maintain optimal lubrication, while S&S premium high-performance tappets ensure quiet and reliable valve train operation. With a 10.5:1 compression ratio and 143 cubic inch displacement, this long block engine delivers unmatched power for an exhilarating riding experience. It fits in a stock chassis without cutting or frame modifications.

Features & highlights

• Experience extreme performance with a massive 143 cubic inch displacement.
• Benefit from CNC-machined S&S B3 cylinder heads for superior airflow.
• Enjoy smooth starting and reliable power delivery with S&S 635 easy-start gear drive cams.
• Ensure optimal lubrication with the S&S high-flow oil pump and cam cover.
• Count on the durability of S&S Super Stock™ T2 crankcases and premium tappets.
• Proudly made in the USA, guaranteeing top-quality craftsmanship.
• Designed for easy installation in stock chassis with no modifications needed.

Technical specifications

• Brand: S&S Cycle
• Type: Long Block Engine
• Displacement: 143"
• Bore Size: 4.425"
• Stroke Length: 4.625"
• Compression Ratio: 10.5:1
• Color/Finish: Black

Important to know

A T143-specific or custom exhaust system is required for installation. Carburetor/intake and ignition system are not included and must be purchased separately. Revised oil routing on '99-'06 Touring models eliminates the need for a separate oil line installation kit.