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H Rebuild
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Posted by SCCA SOLO on July 24, 2003 at 16:00:20 from (208.51.55.188):
I am rebuilding a 1943 Farmall H soon and I have a few questions. Does anyone know if the super h sleeves fit into an h without boring the block? As for compression, what is a safe level of compression to avoid detonation? I know the h is ~5.9:1 but that was because back in the day gasoline octane was extremely low and required lead to increase the octane and lubrication, (Phillips 66 name came from 66 octane, that is low!) but today we have easy access to 87-94 octane. Would 8.5:1 - 9.0:1 be ok for 87 as long as ign. timing is set properly? One last question, has anyone ever flow benched a stock h head and/or manifold? What is the bottleneck?
Don't mean to ask 100 questions, I just like to make engines the most efficient they can be. I really enjoy challenges like this.
Thanks
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Tractor Profile: Farmall M - by Staff. H so that mountable implements were interchaneable. The Farmall M was most popular with large-acreage row-crop farmers. It was powered by either a high-compression gas engine or a distillate version with lower compression. Options included the Lift-All hydraulic system, a belt pulley, PTO, rubber tires, starter, lights and a swinging drawbar. It could be ordered in the high-crop, wide-front or tricycle configurations. The high-crop version was called a Model MV.
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