The stock muffler must be attached after the engine is installed in the chassis. Is it a "serious design flaw" that the crankshaft nut is obscured? Hardly, there are few requirements to get at it. For setting tappets you can either put the car in 5th and roll it, or simply crank the starter in short bursts. I think you'll struggle to find any non-turbo *production* vee engined car that doesn't combine exhaust from the two banks, even if it then splits off to twin pipes. Otherwise you just get the sound of two three cylinder engines. I offer Josh's site as evidence to this practice. https://www.deloreanindustries.com/shop/stainlessworks.html Martin On 25/02/2012 16:56, content22207 wrote: > The original muffler location makes perfect sense from an assembly line standpoint -- bolt the entire engine together, including exhaust, then drop it into the car as a unit. > > When upgrading exhaust in your own driveway, there are no assembly line limitations. > > Heat and access are the two biggest liabilities I see in the original design. I suppose aesthetics could be argued. And as you pointed out, concours competitors have no choice. > > Bill Robertson > #5939 > ------------------------------------ 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/dmcnewsYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: dmcnews-digest@xxxxxxxxxxxxxxx dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> 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/