Overbore depends on the year. I'm told the early 261 can be bored out 2 and
3x more than the later years. Yes, there are ways to tell a Canadian cast
from a US cast. I'll refer that one to an expert Inliner. My Washington
title is off the door post VIN plate, not the engine serial number (if
that's what you are referring to).
----- Original Message -----
From: "New Mexico Jim" <ADvent@thuntek.net>
To: "Allen Jones" <jonesal@u.washington.edu>
Cc: "oletrucks" <oletrucks@autox.team.net>
Sent: Friday, August 04, 2000 2:34 PM
Subject: Re: [oletrucks] 235 or 261?
> Ok, how far can a 261 be bored? How can I tell if I can run a hydraulic
bump
> stick in it? You mean Canadian 261 blocks have one casting mark or all
Cn.
> engines have the single casting mark? Thx. Mine has the skinny oil lines.
Does
> Canada issue titles? Mexico does not. Your registration is proof of
ownership.
>
> Allen Jones wrote:
>
> > Hmmmm, I was told that the captain's bars were for 261s only, two bars
for a
> > US casting and one bar for a Canadian casting (may be the other way
around).
> > Everyone with a Chevrolet inline run out, look at your blocks, and let
us
> > know!!
> >
> > Sometimes the head casting number doesn't work as a 235 head is easily
> > modified to work on the 261 (as I have modified a 235 848 head to fit my
> > Canadian 261). Also, some later, full-flow 261s can be IDed by the
larger
> > diameter oil filter lines.
> >
> > I hope you've got a 261!!!
> >
> > Allen in Seattle
> > '50 3100
> > Inliner No. 2235
> >
> > ----- Original Message -----
> > From: "Jack Halton" <safesix@earthlink.net>
> > To: "oletrucks" <oletrucks@autox.team.net>; "New Mexico Jim"
> > <ADvent@thuntek.net>
> > Cc: "the dodgeless listserver" <oletrucks@autox.team.net>
> > Sent: Friday, August 04, 2000 9:01 AM
> > Subject: Re: [oletrucks] 235 or 261?
> >
> > > My 261 has the "captain's bars" behind the starter but I'm told that
some
> > > 235's have them too. Strange that somebody would go to the trouble of
> > > removing casting numbers. Measuring bore size looks to be the only
sure
> > way
> > > to know what motor you've got. Is there a casting number visible on
the
> > > head? 261's had extra steam holes, so the head has a different casting
> > > number than a 235. I have a list somewhere.
> > >
> > > Jack Halton
> > > 51 GMC 1/2 ton
> > > Winter Park FL
> > > ----- Original Message -----
> > > From: "New Mexico Jim" <ADvent@thuntek.net>
> > > Cc: "the dodgeless listserver" <oletrucks@autox.team.net>
> > > Sent: Friday, August 04, 2000 11:27 AM
> > > Subject: [oletrucks] 235 or 261?
> > >
> > >
> > > >
> > > >
> > > > Somebody else swapped out engines in my 51 two ton dump with a 235
or a
> > > 261. It
> > > > is green and has 2 cast in vertical lines right about the middle of
the
> > > starter
> > > > on the block. There are no casting numbers and the numbers on the
pad to
> > > the
> > > > rear of the distributor has been machined off. This appears to be a
261,
> > > is it?
> > > > I really don't want to pull the head to find out. If it is a 261, I
am
> > > going to
> > > > swap engines between my 50 ½ ton and my 51 two ton. thx
> > > >
> > > > 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
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