I'm not sure how giving you a link t o another site (HSM) will go over here but there is a post going on there now that is worth taking a look at. The guy has shown a number of photos of how he is building a Holt engine and the making of the crankshaft. I found it very informitive.
http://bbs.homeshopmachinist.net/showthread.php?t=26132
Take a look
Mel
http://bbs.homeshopmachinist.net/showthread.php?t=26132
Take a look
Mel