I know you asked jim but I wanted to mention the 219 heads made in 70 and 71 were 50.6 CC combustion chambers. in 72 they went to a 58 cc and then later changed the piston design. Davis --- On Sun, 5/17/09, Armand Eshleman <aje1@xxxxxxxxxxxxxxx> wrote: From: Armand Eshleman <aje1@xxxxxxxxxxxxxxx> Subject: Re: [AMC-list] build Dates/401 CR To: "AMC, Rambler, Nash, Jeep and family" <amc-list@xxxxxxxxxxxx> Date: Sunday, May 17, 2009, 5:18 PM Jim, Do you know what the differences are between the 10.2, the 9.5 and the 8.5 are? I know the early 71 401 had the 219 heads with 58cc combustion chambers, Did AMC drop the compression to 9.5 by using a bigger combustion chamber head in late 71 and then go to different pistons to get the 8.5?? Thanks, Armand _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://list.amc-list.com/pipermail/amc-list-amc-list.com/attachments/20090517/9c37ffad/attachment.htm> _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com