In stock

S&S Cycle 124" Hot Set Up® — Big Bore/Stroker — Wrinkle Black — 88B Twin Cam

S&S Cycle · #0903-1254 · Complete Engines & Rebuild Kits / Engine

For balanced Twin Cam models
Converts a stock engine to 124" using the stock crankcases
Includes S&S Super Stock® 91 cc cylinder heads, 4.125" big bore cylinders, forged big bore flattop pistons, S&S 4.625" stroke flywheel assembly, S&S 640 gear drive Easy Start cams, S&S premium tappets, S&S adjustable pushrods, roller rocker arms, and all hardware, gaskets and instructions
Made in the USA
EFI system must be recalibrated.

$7104.95

In stock. Ships in 2–4 business days · free shipping over $150.

Can’t ship to California.

Ships by ground only — no air or expedited shipping on this one.

Questions? Call the shop: 801-361-3010

Real shop · real humans · 1231 N 1300 W Ste A, Centerville, UT 84014

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Description & features8 features

For balanced Twin Cam models
Converts a stock engine to 124" using the stock crankcases
Includes S&S Super Stock® 91 cc cylinder heads, 4.125" big bore cylinders, forged big bore flattop pistons, S&S 4.625" stroke flywheel assembly, S&S 640 gear drive Easy Start cams, S&S premium tappets, S&S adjustable pushrods, roller rocker arms, and all hardware, gaskets and instructions
Made in the USA
EFI system must be recalibrated.
Fuel or ignition system not included.
All clearances and assembly specifications will need to be checked.
Although the engine is 0.960" taller than stock, there are no frame clearance problems, and a stock EFI throttle body will fit because the manifold mounting surfaces of the heads have been specially machined to fit a stock length manifold.

Specifications14 specs

Style: Big Bore
Type: Engine
Color/Finish: Wrinkle Black, Powder Coated
Compression Ratio: 11.0:1
Units: Kit
Displacement: 124"
Cam Drive Type: Gear
Bore Size: 4.125"
Model: Hot Set Up®
Stroke Length: 4.625"
Riding Style: Street
Shipping weight: 111 lb
Package size: 21.8 × 20 × 20 in
Country of origin: USA

Fitment23 models · Harley-Davidson

Harley-Davidson23 models

15th Anniversary Fat Boy FLSTF2005
FLST Heritage Softail2006
FLSTC Heritage Softail Classic2001–2006
FLSTCI Heritage Softail Classic2001–2006
FLSTF Fat Boy2001–2006
FLSTFI Fat Boy2001–2006
FLSTFSE Screamin Eagle Fat Boy2005–2006
FLSTI Heritage Softail2006
FLSTN Softail Deluxe2005–2006
FLSTNI Softail Deluxe2005–2006
FLSTS Heritage Springer2001–2003
FLSTSC Softail Springer Classic2005–2006
FLSTSCI Softail Springer Classic2005–2006
FLSTSI Heritage Springer2001–2003
FXST Softail Standard2001–2006
FXSTB Night Train2001–2006
FXSTBI Night Train2001–2006
FXSTD Softail Deuce2001–2006
FXSTDI Softail Deuce2001–2006
FXSTDSE Screamin Eagle Softail Deuce2003–2004
FXSTI Softail Standard2001–2006
FXSTS Springer Softail2001–2006
FXSTSI Springer Softail2001–2006

Fitment comes from the catalog data for this part. Double-check your year, model and trim before you order — or call the counter at 801-361-3010 and we’ll check it with you.

Part numbers

Salto part #: 0903-1254
S&S Cycle part #: 900-0565

Shipping

In stock. Ships in 2–4 business days by ground.

Ground shipping is $14.95, free on orders over $150. Stock is checked again before your card is charged.

California: this part can’t ship to a California address.

Ground only: no air or expedited shipping on this part.

Questions4 answers

Is it in stock?: Yes — it’s in stock right now. We check again the moment you order, before anything is charged.
How fast will it get to me?: Usually 2–4 business days by ground.
Will it fit my machine?: It’s listed for the models in the Fitment section above. Not sure about your trim or year? Call the counter at 801-361-3010 and we’ll check it with you.
Is this genuine S&S Cycle?: Yes. It’s new and genuine, straight from Salto — S&S Cycle part #900-0565.