Harley-Davidson Twin Cam Engine from 1999-2017 - Production Changes

Harley-Davidson produced the legendary Twin Cam engine from 1999-2017. In this video I review major production changes during it's nineteen year lifecycle where it evolved from an 88 cubic inch engine to a 96 cubic inch engine and finally to a 103 cubic inch engine in mainstream production models. • Twin Cam 88” – 1999-2006
o Bore: 3.75” Stroke: 4.00”
o Dyna – TC 88 “A”
 All carb 1999 – 2003
 EFI optional 2004-2005

• Delphi EFI
 All EFI 2006
o Softail – TC 88 “B” 2000-2006
 Carb optional 2000-2006
 EFI optional 2001-2006

• Delphi EFI 2001-2006
o Touring – TC 88 “A”
 Carb optional 1999-2006 (RARE)
 EFI optional 1999-2006

• Magnetti Moreli 1999-2001
• Delphi EFI 2002-2006

• Twin Cam 96” – 2007-2013
o Bore: 3.75”
o Stroke: 4.375”

• Twin Cam 103” – 2011-2017
o Bore: 3.875”
o Stroke: 4.375”
o Optional on touring models in 2011
o Standard on touring models in 2012 through 2016
o Standard on Dyna and Softail models 2014-2017
o Automatic compression releases in the heads