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PERFORMANCE MOTORCYCLE PARTS AND KITS FOR AMERICAN V-TWINS

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124" Hot Set Up Kits® Without Heads for Harley-Davidson® Twin Cam 96™/96B™ /103™/110™ Engines

 
$3,995.99
SKU:
900-0571
Qty:
 
Dealer Only Item

 
 
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Description
Product Reviews
Specs
Fitment
Instructions
S&S® 124" HOT SET UP KIT® SPECS
Year Stroke Bore Cylinder Length Piston Type/Compression Ratio
91cc
S&S Heads
89cc
S&S Heads
85cc
Stock Heads
2007-'14 4-5/8" 4-1/8" 5.004" Flat top forged/10.8:1 Flat top forged/11:1 Forged, 10.9cc dish/10.4:1
Does not fit Twin-Cooled™ models

Fitment:

  • 2007 - '14 big twins w/ Balancer
  • Twin-Cooled™ models require 900-0609 head gaskets (2 pack).

 

Features & Benefits:

  • Huge displacement increase means huge power increase
  • Stock crankcases, cylinder heads, oil pump, and cam cover can be reused, saving hundreds of dollars
  • Original engine serial numbers are retained
  • Gear drive S&S 640 Easy Start Cams included!
  • Wrinkle black (WBlack) powder coat finish heads match factory finish, giving bike a "sleeper" advantage
  • .045" MLS (multi-layered steel) head gaskets
  • Requires crankcase boring –S&S can provide quality, professional machine shop and engine building service through our S&S® Service and Speed Center®.
  • Adds .096" to engine height
  • Kits with S&S heads use stock length manifolds (S&S size 405)
  • Cylinder w/ piston kits include fitted pistons ready to install
  • Silver finish available through CTO

 

 

Notes:

Stock crankcases need to be bored to accept new 41/8" bore cylinders. S&S can provide this service for you! See S&S Service and Speed Center®.

S&S Easy Start Cams save you money – no need to buy compression releases or S&S rocker covers.

For engines with cable controlled throttle bodies we recommend the S&S 58mm single bore throttle bodies and manifolds. For 2008-up touring models with electronic throttle control S&S recommends a S&S Throttle Hog 58mm or 66mm Throttle body.

Main Bearing Note: S&S flywheel assemblies included in a 124” S&S Hot Set Up Kit® for 1999-'14 big twin engines are designed for use with Timken® sprocket shaft bearings. They will fit directly in stock 1999-’02 Harley-Davidson® crankcases and in all S&S crankcases for 1999-'14 big twin engines, with no modifications. However, stock 2003 and later engines use a roller type bearing for the sprocket shaft, and will require modification.

Due to the amount of power these engines produce with an S&S Hot Set Up Kit, S&S strongly recommends retrofitting 2003-'14 model crankcases to accept a Timken sprocket shaft bearing. A Timken conversion sleeve such as Screamin' Eagle® #34822-08 or Jim's® #956 may be used. A charging system spacer for 1999-'02 model year is also required. The S&S Service and Speed Center® can preform this modification for you.

If you choose not to convert your crankcases to a Timken sprocket shaft bearing, S&S flywheels may be used in 2003 and later engines with the installation of the Harley- Davidson® bearing kit #24004-03B. This bearing kit adapts the S&S sprocket shaft to be compatible with stock roller type bearings. Verify that the bearing kit contains the 24604-00D or 24607-07 sprocket shaft bearing. Do not use a 24604-00, 24604-00A, 24604-00B or 24604-00C bearing. Please be advised that if this type of bearing is used, sprocket shaft bearing failure WILL NOT be covered under warranty.

Fuel injection tuning is required. S&S offers fuel injection tuning solutions.

Kits with S&S heads are machined special to compensate for engine height change to accomodate a stock length manifold. When using a kit with stock cylinder heads, S&S recommends using the appropriate length manifold. For a 124" with stock OEM cylinder heads, the standard manifold length is 417.

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