Something you might consider, if the 413 needs an overbore with oversized pistons, those puppies are priced through the roof! You can buy the low compression "industrial" slugs for a 413 all day long, but the original high compression type are pretty darn pricy. Bill & Tami Roddick '64 Imperial Crown (life-time project) '66 Imperial Crown (a new mouth to feed) '72 'Cuda 340 (in pieces right now) '88 Cherokee Laredo '95 Concorde ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm