You don't say whether you have a Chevy or a GMC, but if it has a 216 then it
is a Chevy. The 235 & the 261 are the only true "bolt in" replacements.
The GMC blocks are longer & would require you to move the front engine mount
forward, along with the radiator. I have gathered this info from the list
(a few years back); you might search the archives about the details of
trying to put a GMC engine into a Chevy, but one thing I'm sure
of-rebuilding a 302 is going to cost a lot more than any of the others.
They are pretty hard to find & the parts are low volume repro runs for the
vendors.
Regards,
Doug Pewterbaugh
dpewter@msn.com
Denton, TX
49 3104 216 5-window
----- Original Message -----
From: <JohnHuntD@aol.com>
To: <oletrucks@autox.team.net>
Sent: Saturday, May 11, 2002 10:18 PM
Subject: [oletrucks] '49 engine replacement question
> The original (I'm guessing) 216 c.i. low-pressure six in my '49 3/4 ton
> feels like it's on its last legs and will barely pull up the hill in front
of
> my house in 2nd gear of its four-speed transmission. I don't see much
point
> in overhauling this comparatively small-displacement low-pressure
> splash-lubrication engine, and don't want to make the conversion to a
> small-block V-8. I would very much appreciate advice from anyone about
which
> later -model and larger-displacement cubic inch Chevy or GMC carbureted
six's
> will bolt up to my '49 transmission and motor mounts without major
> modification.
>
> I've heard that Chevy and GMC pickups have over the years used
> "high-pressure" six's of 235 cubic inches, 245, 261, and that at one time
GMC
> used a 302 cubic inch six. What do you recommend to replace my
low-pressure
> 216 that will be essentially a bolt-in?
>
> Thanks in advance.
>
> John Doak in Baltimore, Md,
> 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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