[Barry_R]

The 1/4 inch stock does not seem to be real consistant in dimension - I see more variance in the $2 piece of stock than I do in the cranks. I also end up tweaking it to get a decent fit - if you "force" it you'll get a raised burr that'll make things a lot worse.

The damper spacers in steel seem to fit really nice. The ones in aluminum from the same supplier are always tight. They say they're made to the same dimensional spec - which means the problem is either from the alloy expanding during machining or the teflon hard coat anodizing they use - or both.

The stroker cranks use a SBC woodruff key for the timing sprocket which always needs a little massage to get a proper fit.

I have not run into the slinger isue myself - but remember that teh slingerr slot (and seal groove) in a line honed block are going to be smaller in the vertical direction - a potential problem that nobody seems to look for.