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PROGRESSION OF 1939 DESIGNED IHC TRACTORS THRU 60's
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Posted by Harold H on October 27, 1999 at 19:08:50 from (207.244.55.52):
Just for interest, this is the basic design progression of the IHC tractor lines first introduced in 1939 (Cub 1947, C 1948). For the purpose of this progression, the transmission/rear end design/size remained basicly the same through each succeeding model (with improvements and modifications). The Farmall tractors and the standard tractors (W, O, I) differ in configuration but the tranmission/rear end is still the same basic design/size. Engine sizes often jumped progress lines as tractors got more powerful. On this list, all horse powers and all engine sizes to the nearest whole cubic inch are for gasoline models. This list is through mid 60's or thereabouts. A few additional models were introduced along some progress lines after that. Cub 1947 @ 9.76 belt hp, 60 cu in 4 thru 185 @ 18 engine hp, 60 cu in 4, 185 last built 1976.
Cub, Cub LoBoy, Cub 154 LoBoy, Cub 184 LoBoy, Cub 185 LoBoy A & B 1939 @ 18.3 belt hp, 113 cu in 4 thru 140 @ 24.27 belt hp, 123 cu in 4, 140 last built 1979.
A & B, SA, 100, 130, 140 C 1948 @ 22.18 belt hp, 113 cu in 4 thru 404 @ 36.70 pto hp, 135 cu in 4, 404 last built 1967.
C, SC, 200, 230, 240, 340, 404 H & 4 1939 @ 26.20 belt hp, 152 cu in 4 thru 656 @ 63.85 pto hp, 263 cu in 6, 656 last built 1972.
H & 4, SH, S4, 300, 330, 350, 460, 504, 606, 656 M & 6 1939 @ 36.33 belt hp, 248 cu in 4 thru 560 @ 65.25 belt hp, 263 cu in 6, 560 last built 1963.
M & 6, SM, S6, 400, 450, 560 9 1939 @ 52.36 belt hp, 335 cu in 4 thru 660 @ 81.81 pto hp, 282 cu in 6, 660 last built 1963.
9, S9, 600, 650, 660 I hope this is of interest. I don't guarantee it to be 100% but it is close. Harold H
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