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| A Question For The Cadillac Gang [message #76014] |
Mon, 08 March 2010 17:14  |
Neil
Messages: 271
Registered: July 2007
Location: Los Angeles and Magalia, ...
Karma: 1
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Senior Member |
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Is this a blonds vs red head kind of thing? Is the extra displacement worth the work (and by worth - does it yield some performance gain)? Or is it a cool thing to so and so why not?
Is there dyno data on the differences, or even "I had an Olds but now life is better" kind of stories?
They say no question is too dumb to ask.
Thanks in advance.
Neil
76 Eleganza now sold
Los Angeles
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| Re: [GMCnet] A Question For The Cadillac Gang [message #76039 is a reply to message #76033] |
Mon, 08 March 2010 21:03  |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Senior Member |
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I have a friend, here in Tucson, that had a '77, bought in '78 (Edgemont, I think) who replaced his 403 with a 500 ci Cadillac. He explained to me "back in the day" that there was no way to gear down the final drive (except for, maybe the 3.21) and the best way to get 'more power' was to do the Cad swap. I think that was the origin of that procedure, but these days, with the gearing options available to us, I think it is (as the Pennsylvania Dutch would say) "just for so".
Please correct me if I'm wrong.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: [GMCnet] A Question For The Cadillac Gang [message #76047 is a reply to message #76039] |
Mon, 08 March 2010 21:36 |
GMCWiperMan
Messages: 1248
Registered: December 2007
Karma: 1
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Senior Member |
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I suspect I'll wind up replacing my 3.55 FD with a 3.07 -- or a 2.73. We'll
see how the 23' tows & climbs first.
Ken H.
On Mon, Mar 8, 2010 at 10:03 PM, Carl Stouffer <carljr3b@yahoo.com> wrote:
>
>
> I have a friend, here in Tucson, that had a '77, bought in '78 (Edgemont, I
> think) who replaced his 403 with a 500 ci Cadillac. He explained to me
> "back in the day" that there was no way to gear down the final drive (except
> for, maybe the 3.21) and the best way to get 'more power' was to do the Cad
> swap. I think that was the origin of that procedure, but these days, with
> the gearing options available to us, I think it is (as the Pennsylvania
> Dutch would say) "just for so".
>
> Please correct me if I'm wrong.
> --
>
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| Re: [GMCnet] A Question For The Cadillac Gang [message #76051 is a reply to message #76047] |
Mon, 08 March 2010 22:31 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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I can tell you that the additional cubes are noticeable, but I never
sell that to our customers.
One time few years ago, we had a customer that needed a 3.70 so we
dropped it and sent him one. We then replaced it with a 3,21.
When I went up to Oregon and back I could tell enough difference to
where I thought there was something wrong with the engine.
With out advising me,our guys put in another3.70 when the gears came
in. I then hadt go to Nevada. Well, when I got back the guys asked if
it was running better. I answered them that it was running great now
and asked them what they did.
540cid with 3.70 was much better than the 3.21.
Even a big engine can benefit from going in the torque curve sooner.
Neil, I cannot advise you to go Cad or not.
On Mon, Mar 8, 2010 at 7:36 PM, Ken Henderson <ken0henderson@gmail.com> wrote:
> I suspect I'll wind up replacing my 3.55 FD with a 3.07 -- or a 2.73. Â We'll
> see how the 23' tows & climbs first.
>
> Ken H.
>
>
> On Mon, Mar 8, 2010 at 10:03 PM, Carl Stouffer <carljr3b@yahoo.com> wrote:
>
>>
>>
>> I have a friend, here in Tucson, that had a '77, bought in '78 (Edgemont, I
>> think) who replaced his 403 with a 500 ci Cadillac. Â He explained to me
>> "back in the day" that there was no way to gear down the final drive (except
>> for, maybe the 3.21) and the best way to get 'more power' was to do the Cad
>> swap. Â I think that was the origin of that procedure, but these days, with
>> the gearing options available to us, I think it is (as the Pennsylvania
>> Dutch would say) "just for so".
>>
>> Please correct me if I'm wrong.
>> --
>>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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