Sorry for the confusion guys, it is a B280F; at first glance I thought the tag read B28F. Block has the cross bolted mains and oil cooler, heads/ intake ports are different, and the pistons are different (relief cuts, pins aren't pressed into rods, no skirts, etc.). Very little wear on this one so I think I'm going to rebuild with the EFI and dump CIS. If I use B280 heads I can't go back to CIS so I may just stick with the B28F heads with the injector ports. -----Dani B. #5003 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/