Saw this on eeeek bay and thought it doesn't look bad for a stock type rebuild. The ad says the pistons are 8.7 for '70 and 8.2 for '71 and up. They appear to me to be 10.0:1. What do you think? http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&category=33620&item=2443995198