455 vs. 403

[bdub]

How much difference is there between the 455ci engine versus the later
403cid?

I've stumbled onto another Royale only this one has a 403 instead of the
455, and it has the side instead of the rear bath.

Also, to look at the floorplans, the coachman side bath appears to be a
'dry' bath. Could someone confirm this?

Thanks in advance for your responses.

bdub

 

[patrick flowers]

>
> How much difference is there between the 455ci engine versus the later
> 403cid?

Not sure about HP and torque, but the 403 is a "small-block"(along with
the 305 and 350) olds engine and the 455 is a "big-block". Never
directly compared the two myself, but understand that the 455 gives
better performance(obvious) while the 403 gets better mileage.

> I've stumbled onto another Royale only this one has a 403 instead of the
> 455, and it has the side instead of the rear bath.
>
> Also, to look at the floorplans, the coachman side bath appears to be a
> 'dry' bath. Could someone confirm this?

Yep, the Coachman side bath has a little shower stall just forward of
the vanity.

Patrick
- --
Patrick Flowers
Mailtoatri63

The GMC Motorhome Page
http://www.gmcmotorhome.com

 

[thomas g. warner]

Of interest is that the 403 left exhaust manifold fits the 455.

>>
>> How much difference is there between the 455ci engine versus the later
>> 403cid?
>
>Not sure about HP and torque, but the 403 is a "small-block"(along with
>the 305 and 350) olds engine and the 455 is a "big-block". Never
>directly compared the two myself, but understand that the 455 gives
>better performance(obvious) while the 403 gets better mileage.
>
>> I've stumbled onto another Royale only this one has a 403 instead of the
>> 455, and it has the side instead of the rear bath.
>>
>> Also, to look at the floorplans, the coachman side bath appears to be a
>> 'dry' bath. Could someone confirm this?
>
>Yep, the Coachman side bath has a little shower stall just forward of
>the vanity.
>
>Patrick
>--
>Patrick Flowers
>Mailtoatri63
>
>The GMC Motorhome Page
>http://www.gmcmotorhome.com
>
>

 

[gary miller]

I have a side "dry bath" and find it very adequate (I'm 6'2" x 260#) and
prefer it to the "wet bath".
Gary '77 Kingsley -- Oregon

> How much difference is there between the 455ci engine versus the later
> 403cid?
>
> I've stumbled onto another Royale only this one has a 403 instead of the
> 455, and it has the side instead of the rear bath.
>
> Also, to look at the floorplans, the coachman side bath appears to be a
> 'dry' bath. Could someone confirm this?
>
> Thanks in advance for your responses.
>
> bdub

 

[homebase1]

Date sent: Fri, 16 Oct 1998 13:59:36 -0500
To: gmcmotorhome
From: Billy Massey
Subject: GMC: 455 vs. 403
Send reply to: gmcmotorhome

> How much difference is there between the 455ci engine versus the later
> 403cid?

I can't help myself...But...the difference is 12 horsepower and the
torque difference will have to be supplied by someone else...but it's
not much.
Twelve hp in my '55VW would make a lot of difference.....in 6 tons
of aluminum, fiberglass, and other "stuff", I don't think one should
get too excited about whether it's powered by a 403 or 455.
Anyway,it's good to have everyone everyone back! Let the debates
begin
Mike Beaton

 

[tom winslow]

I have both. Driving the 403 from Nashville, TN to Statesville, NC was not a
problem. The '77 Coca-Cola handled the mountains OK. There is a difference.
But, remember, GMC designed the later homes to operate with a 403. If I have
a choice, I will, of course, take the 455.

tw

- --
Thomas P. Winslow
1977 GMC Coca-Cola TZE167V101893
1974/75 GMC Eleganza SE TZE064V101146
189 Hicks Creek Road, Troutman, NC 28166
h704-528-5868 * f704-528-5868 * p704-878-1157
E-Mail: winslow * tom_winslow
Web Page: http://www.iredell.com http://www.iredell.com/gmc4sale.html

- -----Original Message-----
From: owner-gmcmotorhome
[mailtowner-gmcmotorhome]On Behalf Of Billy Massey
Sent: Friday, October 16, 1998 3:00 PM
To: gmcmotorhome
Subject: GMC: 455 vs. 403

How much difference is there between the 455ci engine versus the later
403cid?

I've stumbled onto another Royale only this one has a 403 instead of the
455, and it has the side instead of the rear bath.

Also, to look at the floorplans, the coachman side bath appears to be a
'dry' bath. Could someone confirm this?

Thanks in advance for your responses.

bdub