Pre 84 Trucks 1st gen pickups

20r powered allis-chalmers

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Old 08-18-2015, 03:02 PM
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20r powered allis-chalmers

Hey guys I have purchaced/inherited a old tractor that at some point has gotten a 20r and a 4spd trans so my question is how do I get more torque out of this old,yota I have plenty gear reduction but would be nice bot to be in 1st gear in both transmissions ya know
Old 08-18-2015, 04:07 PM
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Others may have better ideas, but I'm going to go ahead and say that "it is what it is". Other than a tuneup, there's really not much worth doing to it. It's a great engine, and wasn't meant for more than it was built for.
Old 08-19-2015, 01:38 PM
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put in a 22r and torquer cam, or if you have the budget, a 2.6L stroker from lce.
Oh, and I'd really like to see some pics!
Old 08-19-2015, 05:54 PM
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torque and a toyota 4 cylinder don't belong in the same sentence
Old 08-22-2015, 11:31 PM
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Originally Posted by dropzone
torque and a toyota 4 cylinder don't belong in the same sentence
It's all relative. For an engine of it's era (early 70's) and displacement they actually are pretty torquey. Peak numbers aren't jaw-dropping but making peak torque under 3k RPM isn't too shabby.
Old 01-07-2016, 09:08 PM
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Nobody else interested in seeing this thing???
PIC'S PLEASE!!!
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