Post-war developments of the IL-10...first up in this request, the late production IL-10, starting from 1947, outfitted with beefed up armament (offensive- and defensive-wise):
Armament was 4 NS-23 cannons replacing the VYa/ShKAS loadout, 150 rounds each, and a B-20 cannon for the rear gunner, 150 rounds, ordnance payload remains the same.
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Next up is the Il-10M, starting from 1951, with some airframe changes, an aft fin added, and the NS-23s were replaced with NR-23s, same payload capacity:
Specs comparison of the original IL-10:
wingspan: 13.4 m
length x height: 11.12 x 4.18 m
wing area: 30 sq. m
weight: 4,650 kg empty; 6,300 kg loaded
top speed: 507 km/h ASL; 551 km/h at altitude
range: 800 km
...and IL-10M :
wingspan: 14 m
length x height: 11.87 x 4.24 m
wing area: 33 sq. m
weight: 5,570 kg empty; 7,100 kg loaded
top speed: 476 km/h ASL; 512 km/h at altitude
range: 1,070 km
(sources both from airwar.ru,
this and
that)
Il-10M blueprints and cutaways:
STOCK Il-10 for comparison: