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I bought the AA piston package and I'm happy with my choice. Instead of oil squirters I have notched my con rods on the big end, to squirt oil onto the piston crowns.
An experienced UK engine builder says the T crank is happy up to 7,200 revs.
I did the oil bypass mod manually. It was easy. And I got a 964 oil pump to supply the extra oil. To get it in I had to file down one of the case webs.
One of the most experienced engine builders around told me the 5 studs that it's most important to pull and put case savers on. I left all the original cylinder studs in.
I was also able to boat tail the case by hand with the long 13mm reamer previously used to clean up the valve guide bores.
Don't underestimate the amount of work involved, though. I did.
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