Volvo newsgroups describe B280 as having "low friction" bearing refinements. Don't get me to lying -- only know what I read. Bill Robertson #5939 >--- In dmcnews@xxxxxxxxxxxxxxx, Martin Gutkowski <martin@xxxx> wrote: > content22207 wrote: > > > Main bearings are > >reportedly different. I do believe the main block castings are > >identical, however (in fact are identical to B27). > > > That's actually a contradiction Bill because the journal shells are set > into the block. > > FYI the crankpins are different between odd and even fire, but the main > journals are all the same. > > The block castings are only different in terms of liner seat diameter > otherwise they are all identical (as far as I've seen to date). The B27 > I assume is the 2664cc engine and has 88mm pistons. There are various > capacities set by stroke, but all PRV engines have either 88, 91 or 93mm > pistons. Compresion is set by piston crown and conrods are all identical > on even fire, and all identical on odd-fire engines. All PRV conrods are > forged too - bet ya didn't know that :-) There're all sorts of > possibilities for hybrid engines. I'm building one at the moment. > > Martin 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/