124" Hot Set Up® Engine Performance Kit

S&S CYCLE 124" Hot Set Up® Engine Performance Kit

S&S CYCLE
0903-0951
900-0568
The 124" Hot Set Up® Engine Performance Kit allows Twin Cam owners to upgrade their stock engine to a powerful 124" configuration using the original crankcases.
Out of Stock
€5,894.56
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.

124" Hot Set Up® Engine Performance Kit

Transform your Twin Cam engine with the S&S Hot Set Up® kit, allowing you to convert a stock engine to an impressive 124" using the original crankcases. This comprehensive kit includes:

  • S&S heads (91cc)
  • 4.125” bore cylinders
  • Forged 10.8:1 flattop pistons
  • S&S 4.625” stroke flywheel assembly
  • S&S .640” lift gear drive Easy Start cams
  • Tappets
  • S&S adjustable pushrods
  • Roller rocker arms

All necessary hardware, gaskets, and instructions are included. Please note that the fuel system is not part of this kit.

This project requires crankcase modifications, and it is the responsibility of the assembler to check all clearances and assembly specifications. Proudly made in the U.S.A.

: 0903-0951
Out of Stock

Data sheet

Riding Style
Street
Type
Engine
Units
Kit
Color/Finish
Black
Powder Coated
Style
Big Bore
Bore Size Imperial
4.125"
Compression Ratio Imperial
10.8:1
Displacement
124"
Cam Drive Type
Gear

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.