Mondello roller RV CAM KIT

[grant schaffer]

So my situation is i/ we spend tons of money on engine rebuilds and it seems the prevention in the group is the Oldsmobile engine is inferior. No
brass cam gear need one, plug off the eye passage carb or efi, No zinc need zinc, synthetic no synthetic , don't do this to the engine but you have
to do this, no roller need a roller cam, if you don't break it in correctly you get to start over. It seems I /are am spending quite a bit of money on
a coach that isn't seems to be plagued with problems. I can take a Chevy/my 350 same year out of the junk yard rebuilding it with min. Resources and
it's will be solid. So I suppose the Oldsmobile is not as good? I have a hard time believing the go enginneers did know what they were doing.

Here is what would be an idea, create a standard engine cam combo and a list of parts for this items to "upgrade" not all the information on the forum
seems slighted to an engine and a coach that is plagued with issues.
--
1974 GMC Sequoia 26'

 

[Jim Hupy]

Grant, motorhome service is considered extreme service. I know of several
Brand New big block (454 cu.in.) Chevrolet conversions to GMC coaches that
were done in a shop near Sequim Washington using the best heavy duty parts
available. I know of NONE of them that went over about 50,000 miles. I
personally have 130,000 miles on my 403 Olds in my GMC, and know of several
others, both 455 and 403 cu in that have that many or more. Our lab rat
guys that worked in test cells doing durability test to destruct
evaluations on GM engines will tell you straight out that the high nickel
casting Olds blocks were the best of the bunch, with Chev bringing up the
rear of the pack, particularly the ones made in the Tonowanda engine plant.
It's your money, spend it wisely.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

On Sun, Mar 31, 2019, 1:25 PM Grant Schaffer via Gmclist <

> So my situation is i/ we spend tons of money on engine rebuilds and it
> seems the prevention in the group is the Oldsmobile engine is inferior. No
> brass cam gear need one, plug off the eye passage carb or efi, No zinc
> need zinc, synthetic no synthetic , don't do this to the engine but you have
> to do this, no roller need a roller cam, if you don't break it in
> correctly you get to start over. It seems I /are am spending quite a bit of
> money on
> a coach that isn't seems to be plagued with problems. I can take a
> Chevy/my 350 same year out of the junk yard rebuilding it with min.
> Resources and
> it's will be solid. So I suppose the Oldsmobile is not as good? I have a
> hard time believing the go enginneers did know what they were doing.
>
> Here is what would be an idea, create a standard engine cam combo and a
> list of parts for this items to "upgrade" not all the information on the
> forum
> seems slighted to an engine and a coach that is plagued with issues.
> --
> 1974 GMC Sequoia 26'
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

 

[Ken H.]

Ditto what Jim said. Before the GMC, I had several Chevy 454 powered
motorhomes. I was lucky and didn't put many miles on them, but I did learn
that no dealer wanted to trade in any 454 powered motorhome because they
were about ready to need major service.

Also remember the old saw: "Dog bites man is not news. Man bites dog is
news." Same sort of thing with our GMC's: "Trouble free trips are not
worth reporting. Everyone wants to hear about our problems."

Ken H.

On Sun, Mar 31, 2019 at 6:24 PM James Hupy via Gmclist <

> Grant, motorhome service is considered extreme service. I know of several
> Brand New big block (454 cu.in.) Chevrolet conversions to GMC coaches that
> were done in a shop near Sequim Washington using the best heavy duty parts
> available. I know of NONE of them that went over about 50,000 miles. I
> personally have 130,000 miles on my 403 Olds in my GMC, and know of several
> others, both 455 and 403 cu in that have that many or more. Our lab rat
> guys that worked in test cells doing durability test to destruct
> evaluations on GM engines will tell you straight out that the high nickel
> casting Olds blocks were the best of the bunch, with Chev bringing up the
> rear of the pack, particularly the ones made in the Tonowanda engine plant.
> It's your money, spend it wisely.
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
>
> On Sun, Mar 31, 2019, 1:25 PM Grant Schaffer via Gmclist <

>
> > So my situation is i/ we spend tons of money on engine rebuilds and it
> > seems the prevention in the group is the Oldsmobile engine is inferior.
> No
> > brass cam gear need one, plug off the eye passage carb or efi, No zinc
> > need zinc, synthetic no synthetic , don't do this to the engine but you
> have
> > to do this, no roller need a roller cam, if you don't break it in
> > correctly you get to start over. It seems I /are am spending quite a bit
> of
> > money on
> > a coach that isn't seems to be plagued with problems. I can take a
> > Chevy/my 350 same year out of the junk yard rebuilding it with min.
> > Resources and
> > it's will be solid. So I suppose the Oldsmobile is not as good? I have a
> > hard time believing the go enginneers did know what they were doing.
> >
> > Here is what would be an idea, create a standard engine cam combo and a
> > list of parts for this items to "upgrade" not all the information on the
> > forum
> > seems slighted to an engine and a coach that is plagued with issues.
> > --
> > 1974 GMC Sequoia 26'
> >
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>