Dave, I agree, that Darryl's method is a lot cleaner but how did he solve the problem of the input shaft seating in to the recess (and bushing) in the crank? With the added space of the adapter/spacer, I don't see how the stock shaft would be long enough. Without this support, I suspect input shafts wouldnot last long at all.. On my in-process conversion, I am having a custom bell housing made becauseI could not find a good solution to the problem above.. Of course, this bell housing has caused a long delay in the completion of the project. :( Marc -----Original Message----- From: Dave Swingle [mailto:swingle@xxxx] Sent: Thursday, May 01, 2003 12:12 PM To: dmcnews@xxxxxxxxxxxxxxx Subject: [DML] re:Engine Swaps and tranny Questions (Buick Version-LONG) <SNIP> ---I compared notes with Darryl on his Supercharged Vortec installation. Rather than the cast bellhousing, he used a custom-milled adapter/spacer plate with the original DMC bellhousing. This is a much more elegant solution than the custom bellhousing, and I'd recommend to anyone doing this conversion to go that route. Darrell also has designed and installed a much stronger input shaft (due to breakage) and other than that has not had issues with the trans. <SNIP>