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S&S Cycle

S&S Cycle T124 Long Block Engine With Easy Start Camshafts For Harley 1999-2006

Item: P991857
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This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.

S&S T124 Long Block Engine With Easy Start Camshafts For Harley


  • No fuel or ignition systems included, upgrade to your choice of performance intake, throttle body, and ignition
  • Special machined heads to fit stock length manifolds (S&S manifold size 405)
  • Super Stock T2 crankcase, stock looking, but stronger. thicker wall made 356-t6 aircraft grade aluminum
  • Three Piece Flywheel assemblies with the main shaft integrated into the flywheel forging, continuing to keep the stock diameter crankpin. Stronger design due to superior materials, updated production techniques, and patent pending designs.
  • S&S high flow oil pump and cam cover
  • Stock 96" Twin Cam bolt pattern
  • Forged flat top pistons
  • 4-1/8" Bore
  • 4-5/8" Stroke
  • Requires oil line installation kit 434-336 for 1999-2005 FLT models, 434-335 for 1999-05 Dyna Models
  • 58mm throttle body is highly recommended
  • Carbureted engines will require a performance ignition module that allows adjustments to the advance curves
  • 2 Year warranty period
  • S&S engine are shipped without oil

Not legal for sale or use in California on any pollution controlled motor vehicles.

Product Style J&P Cycles Item # Catalog Number Store Sku MFR. Product # Availability
Product Style Black / 585 Camshafts J&P Cycles Item #10212402 Catalog Number901-540 Store Sku MFR. Product #310-0832A AvailabilityIn Stock: Ships in 1-2 business days
Product Style Black / 640 Camshafts J&P Cycles Item #10212406 Catalog Number901-539 Store Sku MFR. Product #310-0831A AvailabilityIn Stock: Ships in 1-2 business days
Product Style Silver / 585 Camshafts J&P Cycles Item #10212428 Catalog Number176-984 Store Sku MFR. Product #310-0327A AvailabilityOut of Stock
Product Style Silver / 640 Camshafts J&P Cycles Item #10212430 Catalog Number162-630 Store Sku MFR. Product #310-0281A AvailabilityOut of Stock
Please review this product's fitment notes & exceptions prior to purchase: Add to Cart
This product is vehicle specific.
Select a vehicle to ensure fitment.
Fitment Notes & Exceptions
  • Item not eligible for return. Engines ship using freight carriers and thereby require an extra 3-5 business days of handling time. 
  • Not compatible with 99-01 Magneti Marelli EFI models.
This Product Fits
Harley Davidson
Dyna Convertible FXDS 1999, 2000
Dyna Low Rider FXDL/I 1999-2005
Dyna Super Glide Custom FXDC/I 2005
Dyna Super Glide FXD/I 1999-2005
Dyna Super Glide Sport FXDX 1999-2005
Dyna Super Glide Sport Touring FXDXT 2001, 2002, 2003
Dyna Wide Glide CVO/SE FXDWG2 2001
Dyna Wide Glide CVO/SE FXDWG3 2002
Dyna Wide Glide FXDWG/I 1999-2005
Electra Glide Classic FLHTC/I 1999-2006
Electra Glide CVO/SE FLHTCSE 2004
Electra Glide CVO/SE FLHTCSE2 2005
Electra Glide Standard FLHT/I 1999-2006
Electra Glide Ultra Classic FLHTCU/I 1999-2006
Road Glide CVO/SE FLTRSEI2 2001
Road Glide FLTR/I 1999-2006
Road Glide SE FLTRSEI 2000
Road King Classic FLHRC/I 1999-2006
Road King Custom FLHRS/I 2004, 2005, 2006
Road King CVO/SE FLHRSEI 2002
Road King CVO/SE FLHRSEI2 2003
Road King FLHR/I 1999-2006
Softail Deluxe FLSTN/I 2005, 2006
Softail Deuce CVO/SE FXSTDSE 2003
Softail Deuce CVO/SE FXSTDSE2 2004
Softail Deuce FXSTD/I 2000-2006
Softail Fat Boy CVO/SE FLSTFSE 2005
Softail Fat Boy CVO/SE FLSTFSE2 2006
Softail Fat Boy FLSTF/I 2000-2006
Softail Heritage Classic FLSTC/I 2000-2006
Softail Heritage FLST/I 2006
Softail Heritage Springer FLSTS/I 2000, 2001, 2002, 2003
Softail Night Train FXSTB/I 2000-2006
Softail Springer Classic FLSTSC/I 2005, 2006
Softail Springer FXSTS/I 2000-2006
Softail Standard FXST/I 2000-2006
Street Glide FLHX/I 2006
Ultra Classic Electra Glide CVO/SE FLHTCUSE 2006
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