S&S Cycle T143 Long Block Engine - 143ci - Black - 310-0737A

Unleash the ultimate power upgrade for your motorcycle with the S&S Cycle T143 Long Block Engine. This powerhouse is engineered for riders who demand maximum performance and reliability. Built with premium components and designed for easy installation, the T143 delivers unparalleled horsepower and torque.

Description

The S&S T143 Long Block Engine features S&S B3 cylinder heads, CNC-machined with two-bolt exhaust flanges for optimal exhaust flow. It incorporates S&S 635 easy-start gear drive cams and 1.725:1 rocker arms, delivering a substantial .674" total lift for improved valve actuation. The S&S Super Stock™ T2 crankcases, equipped with a reed breather valve and three-piece flywheels, ensure exceptional durability and smooth operation. This long block also boasts an S&S high-flow oil pump and cam cover to maintain optimal lubrication and cooling. With premium high-performance tappets, this engine offers unmatched reliability and longevity. Designed to fit in stock chassis without cutting or frame modifications, installation is straightforward. The 143" displacement and 10.5:1 compression ratio combine to deliver exhilarating power across the RPM range. Built in the USA, this S&S T143 long block engine represents the pinnacle of performance engineering for your motorcycle.

Features & highlights

• Experience massive power gains with the 143 cubic inch displacement.
• Enjoy enhanced valve action with .674" lift and 1.725:1 rocker arms.
• Benefit from superior oiling thanks to the S&S high-flow oil pump.
• Ensure durability with Super Stock™ T2 crankcases and premium tappets.
• Easy installation with no frame modifications required for stock chassis.
• Proudly made in the USA, ensuring top-quality craftsmanship.

Technical specifications

• Brand: S&S Cycle
• Displacement: 143"
• Bore Size: 4.425"
• Stroke Length: 4.625"
• Compression Ratio: 10.5:1
• Cylinder Heads: S&S B3 CNC-machined
• Crankcases: S&S Super Stock™ T2
• Cams: S&S 635 easy-start gear drive
• Rocker Arms: 1.725:1
• Type: Long Block
• Color/Finish: Chrome, Wrinkle Black

Important to know

This T143 Long Block Engine requires a T143-specific or custom exhaust system, which must be purchased separately. Carburetor/intake and ignition system are also not included and must be acquired separately. Revised oil routing on '99-'06 Touring models makes an oil line installation kit unnecessary.