Engine comparisons-403 motorhome vs. Toronado

[ron freeman]

Does anyone have a complete list of the differences between the GMC
motorhome 403 engine and the 403 engine in the 77-78 Toronados? I have been
told that the carbs are different, the water pump has a higher capacity,
the oil pump, etc. I would appreciate your information about all of the
differences you know about.
Thanks, Ron Freeman 78 Eleganza II ronstyle

 

[scott woodworth]

Ron,

I know from my experience, the oil filter adapter is different. The
adapter gasket is different also.

- -Scott Woodworth

 

[thomas g. warner]

Ron if you want lots of information on oldsmobile engines and rochester
carbs go to the following site: http://www.442.com/tech.htmlAt

>Ron,
>
> I know from my experience, the oil filter adapter is different. The
>adapter gasket is different also.
>
>-Scott Woodworth
>
>