question Zetor 6340 and 7340 vs. 7245 and 7745 ?

Hello!
I have a question. What is the difference between zetor 6340 and 7340 engines power and size wise compared to 7245 and 7745?

Zetor 6340 is from engine like a Zetor 7745 , the 7245 is smaller with less hp.
Zetor 7340 Turbo ist from engine like a Zetor 7745 Turbo or the 6340 Turbo (selled bevore 7340 Turbo came up).

The 6340 and 7340 have more displacement thanks to a modified crankshaft with a longer stroke. This produces noticeably more torque even at low revs.
The 7745 and 6340/7340 also have a more modern injection pump than the Zetor 7245 with a significantly improved regulator.

Zetor 7245 and 7745 / 7745 Turbo have the old original Zetor front axles. Only good for 25 or 30 kmh top speed.
Zetor 6340 and 7340 Turbo younger then 1995 (or near be) will have as series the Carraro front axles. Good for 25, 30 or 40 kmh top speed.

Both, have the more modern cab BK 6245 and modern paper air filters for cab and engine too.
And if it are not the EKO models, then also a better hydraulics pump at left side of engine (EKOs have the old type hydraulics pump at rear end).