[Fot] Rover V8s

[Duncan Charlton]

The 3.9 vs 4.0 is a head-fake on Rover’s part.  Bore and stroke is identical but there are a few other differences that matter.  Info on the differences here:
http://www.gomog.com/allmorgan/40difference.htm

The consistency of the design allowed me to use SD1 heads from a TR8 on a 4.0 block with cross-bolted mains, and use the front cover from the TR8 so I could use a distributor.

Duncan Charlton
Elgin, Texas USA



> On Oct 20, 2016, at 1:24 PM, Robert Deanes <rfdeanes at gmail.com> wrote:
> 
> I believe that the sanctioning bodys (SCCA,etc.) limit the engine to the 3.9 in the rule book.Other clubs may let you do more, but the guys I know that race them ( besides the Canadian) run the max of 3.9.
> 
> On Thu, Oct 20, 2016 at 1:16 PM, Duncan Charlton <duncan.charlton54 at gmail.com <mailto:duncan.charlton54 at gmail.com>> wrote:
> Joe,
> 
> I suspect so.  Sources I’ve looked at for Morgan spare parts only list one part number even though the Plus 8 was sold for 35 years with 3.5, 3.9, 4.0 and 4.6 liter engines.  Rimmer Bros. in the UK sells over a dozen types of valve covers but only one size gasket.  Summit sells the same gasket for the Buick 300 and 340 as well.  I suspect you already know that the Oldsmobile version of the alloy block 3.5 had valve covers and heads that were quite different, so I’m pretty sure those gaskets would be different.
> 
> Duncan Charlton
> Elgin, Texas USA
> 
> 
> 
> > On Oct 19, 2016, at 4:40 PM, Joe Alexander <joealexandervintage at gmail.com <mailto:joealexandervintage at gmail.com>> wrote:
> >
> > Chris, Paul, Ted, Jack,
> >
> > Starting with the 3.5 liter engine, do the larger disp. Rover Engines have the same Valve Cover?
> >
> > Sean now has a mold for the 3.5 liter valve cover gasket in silicone.
> >
> >
> > <image1.JPG>
> > Joe Alexander
> > 645 1st Street
> > Jesup, IA 50648
> > The-vintage-racer.com
> > Gasketinnovations.com
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> 
> -- 
> rob deanes
> TR Racer

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