Hi Dennis,
I'm not quite clear what you need as references, but I have this info from a service manual.
6 Cylinder L Head Bore Inches H(226) 3.3
M(254) 3.5
Stroke H & M 4.4
Piston Displacement
in Cubic Inches H 226
M 254
Horse Power(Taxable) H 26.13
M 29.4
The only experience I've had with a Ford was with the flathead V8, so I can't help you much on the L6.