Re: [GMCnet] 455 Serpentine Belt System [message #358708 is a reply to message #358704] |
Wed, 16 September 2020 20:24 |
Ken Henderson
Messages: 8726 Registered: March 2004 Location: Americus, GA
Karma:
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Senior Member |
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Tom,
I'm one of the few running a serpentine belt in a GMCMH, and perhaps the
last surviving one to have run it on both an Olds 455 and a Cad500 -- my
current setup. With that being said, I can't offer you much good advice
except this link to a long-ago thread on the subject:
https://groups.google.com/g/gmcnet-archive/c/Il2HfQMqCps?pli=1
While looking for that link, I did run across this which looks worth
studying more:
https://pacificgbody.com/blogs/shop/oldsmobile-serpentine-conversion
One thing I caution you about serpentines: Most of the setups for the 455
wind up running the water pump on the back of the serpentine belt -- that
means it runs in reverse. That caused some users of the Leigh Harrison
(who's deceased) system to have overheating problems. A lot of us
tried modifying OEM pumps to improve the reverse flow and Leigh spent a lot
of time and money designing, prototyping, and setting up production for a
true reverse-flow pump. Only then did someone tell us about such a pump
from some model of Olds Diesel engine (I can't tell you more than that).
The point of all that is to tell you that if I were trying to design a
serpentine belt system for the 455, I'd start by trying to design a 2-belt
system similar to what I've designed and run for 5+ years on my Cad500.
You CAN find kits, but they won't be cheap.
Ken H.
On Wed, Sep 16, 2020 at 8:43 PM tomkatz3--- via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Hello all,
>
> Who carries the Serpentine Belt System for the 455?
>
> Thanks again,
> Tom & Oki Katzenberger
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
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