Posted by DFZ on May 20, 2013 at 17:20:52 from (174.25.89.2):
I have a "46 ZTU and plan on starting to restore it soon.
I would like some advice on rebuilding the engine. I don"t want to make a puller tractor out of it, I personally hate seeing that. I want to restore it as a very strong Stock tractor with as strong of engine as I can rebuild it to have without sacrificing dependability.
Can you fit a crankshaft for a ZA or ZB in the crankcase for a ZT for the extra stroke? Or since I assume I need to have the crank ground, can it be stroked for any noticeable difference?
.060 oversize pistons are available, if any larger are available would I start to sacrifice dependability? Or can a person safely go to .120 over?
How much do you dare shave the head and/or blocks for added compression?
What have you all done to beef up a stock ZTU?
Thanks for any advice. I just want to keep the stock crankcase and stock appearance and make the engine stronger than factory but just as dependable so it can be used for another 67 years.
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