Home » Public Forums » GMCnet » [GMCnet] 403 to a 455
| [GMCnet] 403 to a 455 [message #201989] |
Mon, 18 March 2013 01:31  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
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I have a 78 with a 403. When I found out what I had. I went to a good friend that had a salvage yard. He had a 455 in an Olds that had just come in. I went out and started it. Here was a core to start with. Then I became aware of the 3.07 final drive. So the first mod that I made was to get a 3.70 from Jim K. I pull a 24 ft enclosed trailer a lot. Gross weight runs at 19,000 lbs. I found that the 403 was up to the task. I found that my vac level went up along with my mileage. I took the 455 back, and got a 403 as a backup. Hope to never us it. Been in the Rockies west of Denver with my open trailer with a car on it.
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| Re: [GMCnet] 403 to a 455 [message #201999 is a reply to message #201989] |
Mon, 18 March 2013 06:32  |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
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Great info ! We also have a 78 Royale with the 403 and the 3:70 final drive.
Our mileage went up too. LOVE IT !
Ray
Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: Bob Dunahugh <yenko108@hotmail.com>
To: "gmclist@temp.gmcnet.org" <gmclist@temp.gmcnet.org>
Sent: Mon, March 18, 2013 1:31:11 AM
Subject: [GMCnet] 403 to a 455
I have a 78 with a 403. When I found out what I had. I went to a good friend
that had a salvage yard. He had a 455 in an Olds that had just come in. I went
out and started it. Here was a core to start with. Then I became aware of the
3.07 final drive. So the first mod that I made was to get a 3.70 from Jim K. I
pull a 24 ft enclosed trailer a lot. Gross weight runs at 19,000 lbs. I found
that the 403 was up to the task. I found that my vac level went up along with my
mileage. I took the 455 back, and got a 403 as a backup. Hope to never us it.
Been in the Rockies west of Denver with my open trailer with a car on it.
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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| Re: [GMCnet] 403 to a 455 [message #202000 is a reply to message #201991] |
Mon, 18 March 2013 06:32 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Is the Cad 500 performance that much more ?? Any data ??? Curious.
Ray
Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: Sammy Williams <bd5av8r@gmail.com>
To: "gmclist@temp.gmcnet.org" <gmclist@temp.gmcnet.org>
Sent: Mon, March 18, 2013 1:42:47 AM
Subject: Re: [GMCnet] 403 to a 455
Well, if your so inclined, the Cadillac 500 is also available to stick into
a GMC. :)
S.Williams
On Mon, Mar 18, 2013 at 1:31 AM, Bob Dunahugh <yenko108@hotmail.com> wrote:
>
>
>
>
> I have a 78 with a 403. When I found out what I had. I went to a good
> friend that had a salvage yard. He had a 455 in an Olds that had just come
> in. I went out and started it. Here was a core to start with. Then I
> became aware of the 3.07 final drive. So the first mod that I made was to
> get a 3.70 from Jim K. I pull a 24 ft enclosed trailer a lot. Gross weight
> runs at 19,000 lbs. I found that the 403 was up to the task. I found that
> my vac level went up along with my mileage. I took the 455 back, and got a
> 403 as a backup. Hope to never us it. Been in the Rockies west of Denver
> with my open trailer with a car on it.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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| Re: [GMCnet] 403 to a 455 [message #202003 is a reply to message #202000] |
Mon, 18 March 2013 06:54 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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yup
here is some info ( no advantage:>)
but some do it because they can
special
mounts
headers
tranny
etc
here is an old post on the subject
--------------------
.
.-----------------------------
---
*Dyno tests*
----------------------------------------------------------
I was digging through some old GM test data and thought I would share the
following:
*Olds 455* test data with an uncertain pedigree (Toro or not? Test
conditions?) and it showed a torque at 2800 and below of about *398*. No
data below 2000, but other tests implied a peak torque at 1200 to 1600 rpm.
Peak hp was 234 at 3600.
*Cadillac 500 EFI* - peak torque *395* at 1200 and 1600 rpm. Peak hp 225
at 3600. The engine was knock limited and spark was retarded about 10
degrees from MBT at most rpms. Both of these are consistent with other big
GM engines built at the time(except for the knock-limited part). Max
torquewas always below 2000 rpm and peak hp was never above 4000.
That's not
counting performance engines like the Chevy 427 or the Chrysler Hemi, of
course.
Olds 350 EFI (Cadillac Seville) - peak torque 290 at 1200, peak power 190
at 4400 and still rising. Not knock limited.
If the Cad 500 were tested on today's fuels would it be knock-limited?
Don't know.
.
Hopefully this data will be useful to somebody. GaryC
-------------------------------
I love, ( I do it because I can), but it would be hard to make an informed
decision on these engines based upon the reported performance vs the
dynotest data.....
gene
On Mon, Mar 18, 2013 at 4:32 AM, Ray Erspamer <78gmc-royale@att.net> wrote:
> Is the Cad 500 performance that much more ?? Any data ??? Curious.
>
> Ray
>
>
> Ray & Lisa
> 78 Royale "Great Lakes Eagle"
> Center Kitchen TZE368V101144
> Wauwatosa, Wisconsin 53226
> Email: 78GMC-Royale@att.net
> 414-745-3188
> Web Site: http://ray-lisa.page.tl/
>
>
>
>
> ________________________________
> From: Sammy Williams <bd5av8r@gmail.com>
> To: "gmclist@temp.gmcnet.org" <gmclist@temp.gmcnet.org>
> Sent: Mon, March 18, 2013 1:42:47 AM
> Subject: Re: [GMCnet] 403 to a 455
>
> Well, if your so inclined, the Cadillac 500 is also available to stick into
> a GMC. :)
>
> S.Williams
>
>
> On Mon, Mar 18, 2013 at 1:31 AM, Bob Dunahugh <yenko108@hotmail.com>
> wrote:
>
> >
> >
> >
> >
> > I have a 78 with a 403. When I found out what I had. I went to a good
> > friend that had a salvage yard. He had a 455 in an Olds that had just
> come
> > in. I went out and started it. Here was a core to start with. Then I
> > became aware of the 3.07 final drive. So the first mod that I made was to
> > get a 3.70 from Jim K. I pull a 24 ft enclosed trailer a lot. Gross
> weight
> > runs at 19,000 lbs. I found that the 403 was up to the task. I found that
> > my vac level went up along with my mileage. I took the 455 back, and got
> a
> > 403 as a backup. Hope to never us it. Been in the Rockies west of Denver
> > with my open trailer with a car on it.
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
> _______________________________________________
> GMCnet mailing list
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--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] 403 to a 455 [message #202006 is a reply to message #202000] |
Mon, 18 March 2013 06:59 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Ray,
I haven't done any actual performance comparisons, but the "feel" of the
coach is entirely different with the Cad500. Before, even with a slightly
"warmed up" 455, the coach still felt heavy, especially for the first 10'
of travel. With the 500, that heaviness is gone; throttle response is
instantaneous. And I can't credit that to gear ratio nor torque converter
because those remained the same during the initial installation. The coach
feels to the throttle much more like the Cadillacs it's always compared to.
Is that worth the trouble? Probably only if one's got to have something to
keep them entertained, just "cause I can". Just like the EFI, the 1-Ton
front suspension, the gas powered dining table, the completely redesigned
HVAC and dash, the 6-wheel disc brakes, and all the other "unnecessary"
changes. :-)
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
www.gmcwipersetc.com
On Mon, Mar 18, 2013 at 7:32 AM, Ray Erspamer wrote:
> Is the Cad 500 performance that much more ?? Any data ??? Curious.
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] 403 to a 455 [message #202059 is a reply to message #202006] |
Mon, 18 March 2013 17:12 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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Ken -
Any chance Cadillac used the same trick Mopar used on the '72 cars - they changed the throttle linkage such that you were actually opening the throttle appreciably more on initial movement than in the past. It kept the 'feel' of responsiveness even as the engines became choked of for smog requirements.
--johnny
'76 23' transmode norris
'76 palm beach
From: Ken Henderson <hend4800@bellsouth.net>
To: gmclist <gmclist@temp.gmcnet.org>
Sent: Monday, March 18, 2013 7:59 AM
Subject: Re: [GMCnet] 403 to a 455
Ray,
I haven't done any actual performance comparisons, but the "feel" of the
coach is entirely different with the Cad500. Before, even with a slightly
"warmed up" 455, the coach still felt heavy, especially for the first 10'
of travel. With the 500, that heaviness is gone; throttle response is
instantaneous. And I can't credit that to gear ratio nor torque converter
because those remained the same during the initial installation. The coach
feels to the throttle much more like the Cadillacs it's always compared to.
Is that worth the trouble? Probably only if one's got to have something to
keep them entertained, just "cause I can". Just like the EFI, the 1-Ton
front suspension, the gas powered dining table, the completely redesigned
HVAC and dash, the 6-wheel disc brakes, and all the other "unnecessary"
changes. :-)
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
http://www.gmcwipersetc.com/
On Mon, Mar 18, 2013 at 7:32 AM, Ray Erspamer wrote:
> Is the Cad 500 performance that much more ?? Any data ??? Curious.
>
>
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] 403 to a 455 [message #202243 is a reply to message #202059] |
Wed, 20 March 2013 09:00 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Nope, I don't think so -- it's the low speed torque. When I had to have a
new torque converter during my last exercise, the manufacturer's "expert",
hearing my configuration, suggested a 1200 rpm stall speed! I'm not sure
they really got it that low, but it IS responsive.
Ken H.
On Mon, Mar 18, 2013 at 6:12 PM, Johnny Bridges <jhbridges@ymail.com> wrote:
> Ken -
> Any chance Cadillac used the same trick Mopar used on the '72 cars - they
> changed the throttle linkage such that you were actually opening the
> throttle appreciably more on initial movement than in the past. It kept
> the 'feel' of responsiveness even as the engines became choked of for smog
> requirements.
>
> --johnny
> '76 23' transmode norris
> '76 palm beach
>
>
>
> From: Ken Henderson <hend4800@bellsouth.net>
> To: gmclist <gmclist@temp.gmcnet.org>
> Sent: Monday, March 18, 2013 7:59 AM
> Subject: Re: [GMCnet] 403 to a 455
>
> Ray,
>
> I haven't done any actual performance comparisons, but the "feel" of the
> coach is entirely different with the Cad500. Before, even with a slightly
> "warmed up" 455, the coach still felt heavy, especially for the first 10'
> of travel. With the 500, that heaviness is gone; throttle response is
> instantaneous. And I can't credit that to gear ratio nor torque converter
> because those remained the same during the initial installation. The coach
> feels to the throttle much more like the Cadillacs it's always compared to.
>
> Is that worth the trouble? Probably only if one's got to have something to
> keep them entertained, just "cause I can". Just like the EFI, the 1-Ton
> front suspension, the gas powered dining table, the completely redesigned
> HVAC and dash, the 6-wheel disc brakes, and all the other "unnecessary"
> changes. :-)
>
> Ken H.
> Americus, GA
> '76 X-Birchaven w/Cad500/Howell EFI+ & EBL
> http://www.gmcwipersetc.com/
>
>
> On Mon, Mar 18, 2013 at 7:32 AM, Ray Erspamer wrote:
>
> > Is the Cad 500 performance that much more ?? Any data ??? Curious.
> >
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] 403 to a 455 [message #203889 is a reply to message #201989] |
Sat, 06 April 2013 21:48 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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| BobDunahugh wrote on Mon, 18 March 2013 00:31 |
I have a 78 with a 403. When I found out what I had. I went to a good friend that had a salvage yard. He had a 455 in an Olds that had just come in. I went out and started it. Here was a core to start with. Then I became aware of the 3.07 final drive. So the first mod that I made was to get a 3.70 from Jim K. I pull a 24 ft enclosed trailer a lot. Gross weight runs at 19,000 lbs. I found that the 403 was up to the task. I found that my vac level went up along with my mileage. I took the 455 back, and got a 403 as a backup. Hope to never us it. Been in the Rockies west of Denver with my open trailer with a car on it.
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Bob, the 403 is the best one out there. By far the most reliable and great for those who travel at higher speeds--plenty of extionsion for passing, etc. No worries about intakes cracking.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] 403 to a 455 [message #203911 is a reply to message #203889] |
Sun, 07 April 2013 08:09 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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I agree with you Bob.
Steve
On Sat, Apr 6, 2013 at 7:48 PM, Bob de Kruyff <NEXT2POOL@aol.com> wrote:
>
>
> BobDunahugh wrote on Mon, 18 March 2013 00:31
> > I have a 78 with a 403. When I found out what I had. I went to a good
> friend that had a salvage yard. He had a 455 in an Olds that had just come
> in. I went out and started it. Here was a core to start with. Then I
> became aware of the 3.07 final drive. So the first mod that I made was to
> get a 3.70 from Jim K. I pull a 24 ft enclosed trailer a lot. Gross weight
> runs at 19,000 lbs. I found that the 403 was up to the task. I found that
> my vac level went up along with my mileage. I took the 455 back, and got a
> 403 as a backup. Hope to never us it. Been in the Rockies west of Denver
> with my open trailer with a car on it.
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
>
> Bob, the 403 is the best one out there. By far the most reliable and great
> for those who travel at higher speeds--plenty of extionsion for passing,
> etc. No worries about intakes cracking.
>
> --
> Bob de Kruyff
> 78 Eleganza
> Chandler, AZ
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>
--
Take care,
Steve
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| Re: [GMCnet] 403 to a 455 [message #203916 is a reply to message #203890] |
Sun, 07 April 2013 09:57 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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strange:
from what I have read
Dr. Olds (Joe Mondello) never cared for the 403
for one thing, he felt not having a water jacket between the cyls, was a
weakness. (viper cooling?)
to bad, we will never know what Dick Patterson thinks
gene
On Sat, Apr 6, 2013 at 7:54 PM, Dan Gregg <gregg_dan@hotmail.com> wrote:
>
>
> Bob de Kruyff wrote on Sat, 06 April 2013 21:48
> > BobDunahugh wrote on Mon, 18 March 2013 00:31
> > > I have a 78 with a 403. When I found out what I had. I went to a good
> friend that had a salvage yard. He had a 455 in an Olds that had just come
> in. I went out and started it. Here was a core to start with. Then I
> became aware of the 3.07 final drive. So the first mod that I made was to
> get a 3.70 from Jim K. I pull a 24 ft enclosed trailer a lot. Gross weight
> runs at 19,000 lbs. I found that the 403 was up to the task. I found that
> my vac level went up along with my mileage. I took the 455 back, and got a
> 403 as a backup. Hope to never us it. Been in the Rockies west of Denver
> with my open trailer with a car on it.
> > >
> > > _______________________________________________
> > > GMCnet mailing list
> > > Unsubscribe or Change List Options:
> > > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
> >
> > Bob, the 403 is the best one out there. By far the most reliable and
> great for those who travel at higher speeds--plenty of extionsion for
> passing, etc. No worries about intakes cracking.
>
>
> Bob,
> I am thinking you may be correct.
> Dan
>
> --
> Dan & Teri Gregg
> Dexter, Mo.
>
> http://danandteri.blogspot.com/
>
>
>
>
> _______________________________________________
> GMCnet mailing list
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>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] 403 to a 455 [message #203963 is a reply to message #203916] |
Sun, 07 April 2013 14:55 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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| Mr ERFisher wrote on Sun, 07 April 2013 09:57 |
strange:
from what I have read
Dr. Olds (Joe Mondello) never cared for the 403
for one thing, he felt not having a water jacket between the cyls, was a
weakness. (viper cooling?)
to bad, we will never know what Dick Patterson thinks
gene
|
Why? Are you afraid to telephone him and ask? I just talked to him two days ago so I know he is in town if you call. He also responds well to email.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] 403 to a 455 [message #203964 is a reply to message #203963] |
Sun, 07 April 2013 14:57 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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what did he say?
On Sun, Apr 7, 2013 at 12:55 PM, Ken Burton <n9cv@comcast.net> wrote:
>
>
> Mr ERFisher wrote on Sun, 07 April 2013 09:57
> > strange:
> > from what I have read
> > Dr. Olds (Joe Mondello) never cared for the 403
> > for one thing, he felt not having a water jacket between the cyls, was a
> > weakness. (viper cooling?)
> >
> > to bad, we will never know what Dick Patterson thinks
> >
> > gene
>
> Why? Are you afraid to telephone him and ask? I just talked to him two
> days ago so I know he is in town if you call. He also responds well to
> email.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] 403 to a 455 [message #203999 is a reply to message #203964] |
Mon, 08 April 2013 01:05 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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"Hello Ken"
| Mr ERFisher wrote on Sun, 07 April 2013 14:57 |
what did he say?
On Sun, Apr 7, 2013 at 12:55 PM, Ken Burton <n9cv@comcast.net> wrote:
>
>
> Mr ERFisher wrote on Sun, 07 April 2013 09:57
> > strange:
> > from what I have read
> > Dr. Olds (Joe Mondello) never cared for the 403
> > for one thing, he felt not having a water jacket between the cyls, was a
> > weakness. (viper cooling?)
> >
> > to bad, we will never know what Dick Patterson thinks
> >
> > gene
>
> Why? Are you afraid to telephone him and ask? I just talked to him two
> days ago so I know he is in town if you call. He also responds well to
> email.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
> _______________________________________________
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Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
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Alternator Protection Cable
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Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] 403 to a 455 [message #204498 is a reply to message #203916] |
Fri, 12 April 2013 20:32 |
Brian Waddell
Messages: 409
Registered: March 2010
Karma: -4
|
Senior Member |
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why...where is pattersom
> Date: Sun, 7 Apr 2013 07:57:42 -0700
> From: mr.erfisher@gmail.com
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] 403 to a 455
>
> strange:
> from what I have read
> Dr. Olds (Joe Mondello) never cared for the 403
> for one thing, he felt not having a water jacket between the cyls, was a
> weakness. (viper cooling?)
>
> to bad, we will never know what Dick Patterson thinks
>
> gene
>
>
>
> On Sat, Apr 6, 2013 at 7:54 PM, Dan Gregg <gregg_dan@hotmail.com> wrote:
>
> >
> >
> > Bob de Kruyff wrote on Sat, 06 April 2013 21:48
> > > BobDunahugh wrote on Mon, 18 March 2013 00:31
> > > > I have a 78 with a 403. When I found out what I had. I went to a good
> > friend that had a salvage yard. He had a 455 in an Olds that had just come
> > in. I went out and started it. Here was a core to start with. Then I
> > became aware of the 3.07 final drive. So the first mod that I made was to
> > get a 3.70 from Jim K. I pull a 24 ft enclosed trailer a lot. Gross weight
> > runs at 19,000 lbs. I found that the 403 was up to the task. I found that
> > my vac level went up along with my mileage. I took the 455 back, and got a
> > 403 as a backup. Hope to never us it. Been in the Rockies west of Denver
> > with my open trailer with a car on it.
> > > >
> > > > _______________________________________________
> > > > GMCnet mailing list
> > > > Unsubscribe or Change List Options:
> > > > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> > >
> > >
> > > Bob, the 403 is the best one out there. By far the most reliable and
> > great for those who travel at higher speeds--plenty of extionsion for
> > passing, etc. No worries about intakes cracking.
> >
> >
> > Bob,
> > I am thinking you may be correct.
> > Dan
> >
> > --
> > Dan & Teri Gregg
> > Dexter, Mo.
> >
> > http://danandteri.blogspot.com/
> >
> >
> >
> >
> > _______________________________________________
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> >
>
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> “Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
> _______________________________________________
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| Re: [GMCnet] 403 to a 455 [message #204509 is a reply to message #203889] |
Fri, 12 April 2013 21:12 |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
Karma: 11
|
Senior Member |
|
|
| Bob de Kruyff wrote on Sat, 06 April 2013 19:48 |
_______________________________________________
Bob, the 403 is the best one out there. By far the most reliable and great for those who travel at higher speeds--plenty of extionsion for passing, etc. No worries about intakes cracking.
|
Bob,
I am so glad to hear you say this. I am tired of hearing that yet another fairly fresh 455 has come apart; valves, bearings, piston, etc. If my 18k 455 didn't use so much oil I would gladly trade for a 403; if I could bypass my conscience. I am beginning to think the 455 is a good boat anchor.
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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| Re: [GMCnet] 403 to a 455 [message #204513 is a reply to message #204509] |
Fri, 12 April 2013 21:55 |
 |
WD0AFQ
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
|
Senior Member |
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| George Beckman wrote on Fri, 12 April 2013 21:12 |
| Bob de Kruyff wrote on Sat, 06 April 2013 19:48 |
_______________________________________________
Bob, the 403 is the best one out there. By far the most reliable and great for those who travel at higher speeds--plenty of extionsion for passing, etc. No worries about intakes cracking.
|
Bob,
I am so glad to hear you say this. I am tired of hearing that yet another fairly fresh 455 has come apart; valves, bearings, piston, etc. If my 18k 455 didn't use so much oil I would gladly trade for a 403; if I could bypass my conscience. I am beginning to think the 455 is a good boat anchor.
|
Dog gone George. I hoped you had solved that problem. Might be time to visit the engine builder.
Dan
3 In Stainless Exhaust Headers
One Ton All Discs/Reaction Arm
355 FD/Quad Bag/Alum Radiator Manny Tran/New eng.
Holley EFI/10 Tire Air Monitoring System
Solarized Coach/Upgraded Windows
Satelite TV/On Demand Hot Water/3Way Refer
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