I once owned a 1982 GMC with the 6.2. It had a 700R4 automatic
overdrive. I'm sure of that because GM had to R/B it. I did a lot of
research on this trans (over 200 design changes to improve reliability).
The 6.2 is NOT based on the Oldsmobile engine (The earlier 5.7
diesel was). I honestly cannot remember what the bell-housing bolt
pattern is on the 6.2 but I think it uses S/B chevy motor mounts. I
agree with Randall that at least some of the 200-4R transmissions are a
dual bolt pattern ( I have one of those bolted behind a Pontiac engine
in a '67 GTO at the moment). I believe GM may have used the 200-4R with
the 5.7 but not the 6.2. There's a good chance a 350 Chevy will bolt
right in....Just check the bellhousing bolt pattern for sure.
Hope this helps,
RANDALL WICKHAM wrote:
> The transmission is probably a Turbo 350 because the Olds diesel
> wouldn't make enough power to warrant a Turbo 400.
> A small-block Olds (260-403) gas engine will bolt right in place of
> the Olds diesel in your friends truck. The only consideration would
> be that he would now need an ignition system. Actually an Olds 455
> would bolt right in as well, but then he would have to also consider
> his existing radiator size.
> The transmission bell-housing for Buick/Olds/Pontiac/Cadillac have
> different bolt patterns than Chev/GMC, unless you happen to have a
> Turbo 200-4R, which often have a dual pattern.
> Make sure to thoroughly clean out the fuel tank and lines, too.
>>> Date: Mon, 17 Nov 2003 17:44:35 -0800
>> From: "Spencer" <firstname.lastname@example.org>
>> Subject: [oletrucks] Off topic swap
>> I have a friend who wants to swap out the 6.2 liter diesel (with a
>> head) in his 1983 GMC 4WD. He'd like to convert to a small block gas
>> Would he need a GMC motor to match up to the tranny or would a Chevy
>> 350 be
>> okay? The tranny is an automatic, probably a Turbo 350 or 400. The
>> is in great shape except for the engine, and is worth sinking some money
>> 1955 AD Chevy
>> Reno, NV
>> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> Has one of the new viruses infected your computer? Find out with a
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> 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