Description
If you’re running a stock Twin Cam and want genuine performance gains without a complete engine rebuild, the S&S Hot Set-Up Kit delivers a straightforward path to 124 cubic inches and 11:1 compression using your existing crankcases. This comprehensive kit eliminates the guesswork of sourcing individual components—every piece is engineered and matched by S&S for reliability and peak performance. You get a balanced, durable platform that respects both your budget and your machine.
What’s Included:
- 4-1/8″ bore pistons
- Big bore cylinders, wrinkle black
- Three-piece flywheel assembly
- Heavy-duty connecting rods
- Integral mainshafts
- 640 gear drive Easy Start camshafts
- Chromoly adjustable pushrods
- Premium S&S tappets
- Super Stock 91cc cylinder heads
Technical Specifications:
- Final displacement: 124 cubic inches
- Compression ratio: 11:1
- Finish: Black powder coat
- Crankcase modifications: Required
- Installation: Professional assembly recommended
- Fuel system: Not included
- Manufacturer: S&S Cycle, USA-made
- MPN: 900-0569
- Fitment: Twin Cam engines only






