It’s a M4A3 sherman tank, produced by the US during the second world war. It was first introduced in 1944. It has some improvements over previous variants such as better engine, wider tracks and a more powerful 76mm gun placed in a bigger turret.
Engine is a Ford GAA, 18L Gasoline, producing around 500hp @ 2600rpm
Finding references is hard as there were many different variants which also had slight changes during production and slight variations between different manufacturers. Crews would also modify the tanks in the field so in a way each tank was unique.
I mostly use various technical manuals found online as a base and then cross reference with multiple photographs when possible. While this works great for outside parts, interior photographs and videos are rather scarce.
Currently I have dozens of technical documents for various vehicles and vehicle components and hundreds of photos saved(with even more photographs and videos bookmarked)