Yes the ACL ones are often a bit too thick. You can sand the steel side down on a surface plate and some 180 wet and dry paper, I use WD 40 to lube it.
If you are going to rev it over 6500 you want 5 or 6 thou end float.
Get them surface ground on the steel side, it's quicker.
The manual says 3 thou end float, I found it's not enough unless it's a bog stock road motor. The crank webs will grab the thrust washers at high rpm and overheat the centre main. I then had to get a crank reground.
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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.