How would I find out the engin size of my 1975 f250 ranger body style C8M. sticker on door axel 37J trans G f255?

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1975 f250 ranger body C8M All original wanting to restore.

Welcome to FRF and I have no idea on that one

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2008 ford escape xlt 3.0 v6 4x4

94 xlt 5spd longbed,tc 2.3t 30 over trw pistons arp rods mains and head studs, a237cam,Adj Cam Gear, Topmount with external wastegate,Walbro 255,42# injectors,bbk fpr,fmic,90* rotated upper intake,t3 18psi,6/5 drop with dream beams,8.8 373 posi,17x9 wheels,swp seats,hks ssqv bov,8k hids, autometer guages, Wideband o2, shiftlight, hurst equipt, illusive trans x-member, 01-04 4x4 bumper
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PNW Crew
AC

v8 or strait six? since its an f-250 its going to have a large displacement engine if its a v8 i would say a 351/400m or a 460 if strait six would be a 240 or 300 strait six at least thats what i have seen at the junk yards around here
here is a list of possible engines it could be

240 CID Straight-6 1973–77
300 CID I6 1973–79
352 CID FE V8 1973–77
360 CID FE V8 1973–76 145 hp (108 kW)
390 CID FE V8 1973–77 195 hp (145 kW)
460 CID 385 V8 1973–79 200–220 hp (150–162 kW)
351 CID 351M V8 1977–79 163 hp (122 kW)
400 CID 400M V8 1977–79 169 hp (126 kW

if you can get a picture of the top end / water pump area i can probably tell you what series of more it is at least to get you close

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1990 Ranger Extended Cab
2.9L V6 5 Speed Transmission
Planning to put a 347 and a T-5 in it eventually