T124 Stone Gray Engine With 640 CamsThis 124 cubic inch T124 high compression Long Block engine fits 2007 '16 HD touring except Twin Cooled models. Long Block engines do not include a fuel or ignition system, if you already have 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