I'm having trouble getting this thing to fit flush so I can mount the oil pan.

http://www.on.rim.or.jp/~ssworks/rudder_b16.jpg
(above the URL of the company, if you remove the picture filename)

Never mind the japanese penchant of misnaming car parts, but I'm wondering if anyone knows the exact tolerances to mill the bearing cap tops (or do I need to mill the girdle itself) to get this to fit..

I realise from the site itself that it's stated that I do need to do some work to fit, but it would be helpful if someone has done it already, and can tell me if I missed anything in getting it to fit.

Sheesh! I know.. I should have gone with endyn's block girdle.. but I've no experience with them.. and I live in Malaysia, so naturally I gyrate to whatever country that's nearer... in this case... J-land.