The 124 cubic inch T124 low compression Long Block engine fits 1999-'06 HD big twins except 2006 Dyna models. Long Block engines do not include a fuel or ignition system, so they can be used for either carbureted or EFI applications. If you already have a performance ignition, larger carburetor or a larger throttle body and EFI tuner, they can be used with this engine. The cylinder heads are specially machined to compensate for the longer cylinders so a stock length manifold or throttle body will fit perfectly, and the cylinder head breathers are compatible air cleaners designed for a stock engine. Engine features 4-5/8" stroke X 4-1/8" bore at 10.2:1 compression, S&S 585 gear drive Easy Start cams, S&S TC3 cam plate and oil pump, and black wrinkle powder coat finish that matches stock engine components.

This Part Fits:

Year	Make	Model	Submodel
1999-2006	Harley-Davidson	FLHR Road King	Base
1999-2006	Harley-Davidson	FLHRCI Road King Classic	Base
2000-2006	Harley-Davidson	FLHRI Road King	Base
2004-2006	Harley-Davidson	FLHRS Road King Custom	Base
1999-2000,2003,2006	Harley-Davidson	FLHT Electra Glide Standard	Base
1999-2005	Harley-Davidson	FLHTC Electra Glide Classic	Base
1999-2006	Harley-Davidson	FLHTCI Electra Glide Classic	Base
1999-2006	Harley-Davidson	FLHTCUI Electra Glide Ultra Classic	Base
2006	Harley-Davidson	FLHX Street Glide	Base
1999-2006	Harley-Davidson	FLTR Road Glide	Base
1999-2006	Harley-Davidson	FLTRI Road Glide	Base