Brand new easy set TaG engine mount top w/ integrated flywheel holder, to fit U.S. standard chassis only.  Top assembly only, clamps not included.  Please note this mount uses clamps with an offset center bolt (see photo). 

Dimensions:
Fit chassis tube spacing (at centers):  2-3/4" - 3" (American strandard)
Fits chassis tube size: 1" - 1-1/4"
Engine mount hole spacing (front-to-back):  ~102 at centers
Engine mount hole spacing (side-to-side):   ~80mm at centers
Flywheel lock location:  Centered between front / rear engine mount holes, and in line with the outside edge of the right side holes.