Shannon, The 4 speed automatic is a ZF 4 HP 22 E or HL. It came out of a Porsche. I have one disassembled that needs to be rebuilt. I would call around to find a shop in your area who really knows ZF 4s. The "guts" are fairly common and used in Rovers, Jaguars, BMWs, etc. I could make you a very good deal on it. I need to get rid of the parts from my garage. As for the adaptor plate, I had Kennedy Engineering make it. The bellhousing comes off and is sent to them. The have the pattern for the SBC. BTW. I would recommend an aluminum SBC so you don't have addition weight issues on the rear end. Bob Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/DMCForum/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/DMCForum/join (Yahoo! ID required) <*> To change settings via email: mailto:DMCForum-digest@xxxxxxxxxxxxxxx mailto:DMCForum-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/