T143 Long Block Engine — 143 cu in, 4.425 in bore × 4.625 in stroke, 10.47:1, Black

S&S CYCLE T143 Long Block Engine — 143 cu in, 4.425 in bore × 4.625 in stroke, 10.47:1, Black

S&S CYCLE
0901-0253
310-0837A
  • Complete long block assembled with S&S high-performance components.
  • T143-specific or custom exhaust required.
  • Does not include carb/intake or ignition system.
  • Fits in stock chassis; no cutting or frame modifications required.
Out of Stock
€12,435.58
€12,874.48
Save €438.90
This product is currently unavailable.
  Delivery policy

In stock items will be shipped within 1-3 days.

  Return policy

You can return the products within 14 days for a full refund, check our returns policy.

The S&S T143 Long Block Engine assembles premium S&S components into a ready-to-install long block for compatible Harley-Davidson models. 🔧

This long block features S&S B3 cylinder heads CNC-machined with two-bolt exhaust flanges, S&S 635 easy-start gear drive cams and 1.725:1 rocker arms for .674" total lift, S&S Super Stock™ T2 crankcases with reed breather valve and three-piece flywheels, an S&S high-flow oil pump and cam cover, and S&S premium high-performance tappets. Made in the USA. 🇺🇸

Important notes: a T143-specific or custom exhaust is required. The unit fits in a stock chassis with no cutting or frame modifications necessary. Does not include carb/intake or ignition system; those must be purchased separately. Revised oil routing on '99–'06 Touring models makes an oil line installation kit unnecessary.

: 0901-0253
Out of Stock

Data sheet

Type
Long Block
Units
Each
Color/Finish
Black
Brand
S&S CYCLE
Bore Size
4,425"
Compression Ratio Imperial
10.47:1
Displacement
143"
Stroke Length
4,625"
Compression Ratio
10.47:1

Shipping Policy

Shipping Areas:

We ship to:

  • Spain (Peninsula and Balearic Islands)
  • European Union countries

We do not ship to the Canary Islands, Ceuta, or Melilla.

Shipping Times:

  • Spain (Peninsula): 2–4 business days
  • Balearic Islands: 3–5 business days
  • EU countries: 3–7 business days depending on destination

Shipping Costs:

Shipping costs are calculated automatically at checkout based on destination and weight.

Free shipping may be offered for qualifying orders, as specified on our website.

Order Processing:

Orders are processed within 1–2 business days after payment confirmation. Orders placed on weekends or public holidays are processed the next business day.

Delivery Issues:

If your order is delayed or arrives damaged, you must notify us within 14 calendar days. We will investigate the issue and offer a resolution in accordance with applicable consumer protection laws.

Return & Withdrawal Policy

Right of Withdrawal:

In accordance with Royal Legislative Decree 1/2007 (Ley de Defensa de los Consumidores y Usuarios), you have the right to withdraw from your purchase within 14 calendar days from the date of receipt, without giving any reason.

To exercise this right, contact us via email or through our website, providing your order number and contact details.

Return Conditions:

  • Products must be unused, in original condition and packaging.
  • Return shipping costs are the responsibility of the customer, unless the product is defective or sent in error.
  • Refunds will be issued within 14 days of receiving the returned goods.

Items Excluded from Return:

  • Custom or personalized products
  • Sealed items that were unsealed after delivery and are unsuitable for return due to hygiene (e.g. cosmetics, personal care)
  • Digital content delivered electronically once download or streaming has begun

If you want to return an item, please contact us first to give you detailed instructions.