The 3020 has 63.1 drawbar horsepower and 71.4 PTO horsepower.
A John Deer 2840 has 67.4 hp [50.3 kW] at the drawbar and 80.65 hp [60.1 kW] at the PTO.
75 hp
95hp
the first john deere 3130 had 89 horsepower with the last of them having about 95 horsepower according to the books but most them that tested had 100+ horsepower
400
145
36 horsepower at the PTO and 30 at the drawbar
A John Deere Model 50 had 20.62 drawbar horsepower and 26.32 belt horsepower for more info on the 50 visit http://www.tractordata.com/farm-tractors/000/0/3/35-john-deere-50.html
36 at the PTO, 30 at the drawbar
84 HP (62.6 kW).
A John Deere 8530 had 330 engine horsepower, 276.3 drawbar horsepower, and 312.7 maximum PTO horsepower.
Here's a chart that will give you all kinds of info about the "B". Go here: http://www.johnnypopper.com/cgi-bin/jdstatsf.cgi?B
6 hp Kawasaki engine