84 cutlass supreme 305 or 307

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theveinarms - 20 Apr 2005 15:06 GMT

i have an 84 cutlass supreme and I'm not sure how to tell if it has the
chev 305 or the olds 307 engine. I'm also looking for a used transmission
for it and I'm wondering if anyone knows what other models of vehicle
around that year would have the same tranny or just which different ones I
could use on that car.

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Shep - 20 Apr 2005 22:08 GMT

Only seen 307's in this olds.

>i have an 84 cutlass supreme and I'm not sure how to tell if it has the
> chev 305 or the olds 307 engine. I'm also looking for a used transmission
> for it and I'm wondering if anyone knows what other models of vehicle
> around that year would have the same tranny or just which different ones I
> could use on that car.

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88CSC - 21 Apr 2005 00:50 GMT

On Wed, 20 Apr 2005 10:06:29 -0400, the world eagerly held it's breath
in anticipation awaiting "theveinarms" <theveinarms__@hotmail.com> to
finish writing:

>i have an 84 cutlass supreme and I'm not sure how to tell if it has the
>chev 305 or the olds 307 engine. I'm also looking for a used transmission
>for it and I'm wondering if anyone knows what other models of vehicle
>around that year would have the same tranny or just which different ones I
>could use on that car.

Simplist way is by looking at the oil fill. If it's through a tall
tube at the front of the engine, it's a Olds 307. If it's through the
valve cover, it's a chevy.

The factory would have put in a THM200, which was used in many models
except for station wagons and some of the full size cars. If you're
planning on keeping it for awhile, a 350 is a bolt-in and much more
durable. Which ever you get, make sure it has the bolt pattern to
match your engine.

88CSC
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