I can vouch for the 261 Chev engine being used in Canadian cars. The 261 I
just rebuilt was out of a Canadian Pontiac. Except for the "boss" on the
front end of the engine ( where it looks like motor mounts may have been)
the engine are primarily the same. The first 261 I had was an American 261
so I could stand them side by side and compare them. The Canadian 261 was
not "full flow" oil filter system so I had Buffalo Enterprises drill and
tap it so I could install a full flow oil filter system.
Ralph Linnell
Inliners International Membership Chairman
Chevysix@seatac.net
http://www.seatac.net/chevysix/
-----Original Message-----
From: owner-oletrucks@autox.team.net
[mailto:owner-oletrucks@autox.team.net]On Behalf Of safesix@worldnet.att.net
Sent: Thursday, November 04, 1999 12:28 PM
To: Blaine & Maggie Dumkee
Cc: Keith Breuer; oletrucks@autox.team.net
Subject: Re: [oletrucks] 55 GMC 150 motor?
Yes! Canadian GMC's - at least the light duty pickups -
used Chevrolet engines, at least during some years. Any
Northern neighbors who may have more info on Canadian
GMC's please confirm this. Also I've heard that some
Canadian Pontiacs used 261 Chev sixes rather than the
straight 8 fitted to US models.
Jack / Winter Park FL
> Quick question on GMC engines. Both my 59 GMC driver and 59 GMC parts
truck
> have 235's. They appear to be the original engines. Both are Canadian
> models, did that make a difference?
>
> Blaine Dumkee
> 59 GMC 9314
> Fort Smith NT
> Canada
>
>
> -----Original Message-----
> From: jack halton <safesix@worldnet.att.net>
> To: Keith Breuer <kbreuer@sgi.net>; oletrucks@autox.team.net
> <oletrucks@autox.team.net>
> Date: Thursday, November 04, 1999 4:43 AM
> Subject: Re: [oletrucks] 55 GMC 150 motor?
>
>
> >Although Chevy and GMC shared chassis and bodies, GMC's used a different
> >family of engines through the 50's and most of the 60's. Generally larger
> >physically, with thicker castings, bigger bearing surfaces in some areas,
> >always full pressure crank oiling systems. They were designed as truck
> >engines, never offered in any GM car, and were considered by some to be
> >superior to the "Stovebolt". Actually all GMC inlines have solid lifters,
> >there is no oiling provision for hydraulic lifters. GMC's typically had
> >stronger internals, like higher volume oil pumps and alloy timing gear
> sets,
> >rather than the fiber gears on 235's. The "Jimmys" were made in
> >displacements of 228, 248, 270 and 302 cubic inches and share many
internal
> >parts, were widely used in military vehicles, and were also very popular
> for
> >racing conversions, due to their prodigious torque and rugged bottom end
> >design. When raced in sprint cars, they became known as "the farmer's
> Offy".
> >
> >These engines were never produced in the volume of 235's, so parts can be
> >more difficult to locate, and sometimes more costly. Some 235 parts like
> >water pumps and distributors are the same, although they may carry
> different
> >part numbers. GMC radiators are different from Chevy, but bell housings
and
> >drivetrains were identical.
> >
> >If your 55 motor (probably a 248 - first 3 digits of the engine number
are
> >the displacement - look on the block to rear of distributor) is running
> >well, there's no reason to replace it with a 235. It would lower the
value
> >of the truck and require modifying the front crossmember for the shorter
> >235.
> >
> >Jack / Winter Park FL
> >----- Original Message -----
> >From: Keith Breuer <kbreuer@sgi.net>
> >To: <oletrucks@autox.team.net>
> >Sent: Wednesday, November 03, 1999 10:40 PM
> >Subject: Re: [oletrucks] 55 GMC 150 motor?
> >
> >
> >>
> >> > Another dumb question: I just got my "new" GMC 55-1
> >> > running, but was surprised to discover it is not a 235
> >> > motor. I already have had to special order a valve
> >> > cover gasket, and am wondering if a 235 would be
> >> > better. What motor should be in this truck? How does
> >> > it compare to the 235?
> >>
> >> The only dumb question is the one not asked.... But you might get
> >> some dumb answers!
> >>
> >> The 55-1 came standard with the GMC 248. It offered a little more
> >> horsepower than the Chevy 235 and hydraulic lifters. I believe the
> >> over all length of the Jimmy engine is longer than that of the Chevy
> >> also.
> >>
> >> Keith Breuer
> >> kbreuer@sgi.net
> >>
> >> ---------------------------------
> >> My 1947 3/4 ton Chevy Web Site
> >>
> >> http://www3.cybercities.com/k/kbreuer/
> >> ---------------------------------
> >> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> >
> >oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> >
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
|