I agree Nick , they kept improving on a tried and true 404 and even turboed it up and still stood the test and then built the 4230 with sound guard cab and naturally aspirated, but refined, 404 for a tractor that ought to out-last any 4020. For a 95-100 hp tractor I personally don't thing one can beat a 4230. As far as the posters question, I think it's been proven that in a farm tractor a moderate rpm long stroke 6cyl is the way to go over a screaming v8 of similar size. Massey tried it ,White tried it , Oliver tried it, IH tried. Moline , Case and JD have stuck with what works and lasts.
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