M-W in Farmall H

79redcub · Jun 20, 2010

Hello, My 40 Farmall H has the MW pistons in it i think. How many hores power did the H's have with the MW in them. ALso what was the bore of the motors when they had the kit in them.Thanks

William D Warringer · Jun 20, 2010

Try this site www.farmall-h.com look at spec's

79redcub · Jun 20, 2010

I didn't see anything about the MW pistons information. Just the stock bore and power.Or did the MW add any power.

D Slater · Jun 20, 2010

With the following M&W piston sets all piston bores are 3-7/16 and all horse power numbers are M&W advertised. Set # SP-70 with a 6.4 compression ratio using a 8043 head 34.6 HP.
Set # SP-72 with # 8043 head 8.0 compression ratio = 35 HP. Maybe tested on LP gas or recomended for gasoline above 4000 feet.
Set # SP-72 with heads # 6186 and 8776 at 6.4 CR = 33.4 HP.
Set # SP-71 with heads # 6186 and 8776 at 6.0 CR. = 32.1 HP.

79redcub · Jun 20, 2010

I will look at my head and see which one it is. This power will be good for pulling at the fair this year. Thanks for the information.

M-W in Farmall H

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