OLD cast iron powerglide ID help - Chevelle Tech
Transmission & Driveline Transmissions and Differentials

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post #1 of 5 (permalink) Old Dec 21st, 03, 9:56 PM Thread Starter
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Join Date: Jan 2001
Location: Ocean Springs MS
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I just pulled the 283 and powerglide out of my OLD beater 61 aoache 10 Custom Cab truck, and the transmission has my stumped.

I was suprised that this truck was an auto, but it is. Column shift 2 speed. Well anyways I start to take it off the 283, and it is all weird. It has powerglide cast into the back of it, and there was a little green plastic tag that said Chevrolet Powerglide.

Here is where things get weird. There is an Adapter between it and the motor. the sdapter has a bolt in the very top, but otherwise is just like any SBC bolt pattern. The adapter, and tranny has a round bolt pattern, and just looks weird. The case of the transmission is cast iron!!! and it is HEAVY! haha cool nonetheless

the 283 went out the door for 150 bucks unknown condition. Going into a 63 2 door impalla. Good home as far as I am concerned.

What do you guys think? Any history on this is appreciated!

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post #2 of 5 (permalink) Old Dec 22nd, 03, 8:06 AM
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I hope it's not a valuable piece because I gave one away with the 6 cyl engine that came out of Sherri's 59 Biscayne.

Wayne Scott
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post #3 of 5 (permalink) Old Dec 22nd, 03, 4:38 PM
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I have the old cast iron Powerglide in my 57 Chevy. They used a spacer between the engine and the bell housing of the trans...one for V8's and another type for the "inline 6". I always hated to pull that trans...it weighs a ton! Easy trans to rebuild, though. The cool thing was that there was an "access panel" on the floor pan, at the top of the transmission hump, for access to the top 3 trans to engine bolts.
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post #4 of 5 (permalink) Old Dec 23rd, 03, 12:03 AM
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The first aluminum Powerglides were used in '62 models with 327s. For '63 they all were aluminum. They even made a version for the 409 - 340 horse. The old cast iron version was offered with 348s up to 305 horsepower. There are significant differences besides the case between the iron vs. aluminum versions.

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post #5 of 5 (permalink) Old Dec 23rd, 03, 11:30 AM
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Yep, all of the above is correct. Iron 'til 61, then alum in 62. Even though iron and alum are PG, both are totally different. Basically, the only value to this old timer is for someone who needs to restore a vehicle with an iron PG. You will not have much luck finding a buyer that will pay much. And it is also correct that V-8s and 6s used a different adapter between the engine and (iron) PG.
The only question left, is, what did the 62 6cyl engines use for a PG? Was it the 61 style iron, or a special version alum for 62 only 6cyl engines????? The 6 in 62 was the last year for this engne. The 63-later 6 was a TOTALLY redesigned engine which had the same bolt pattern on the rear of the block for a bell housing as a V-8 (also, 63-later 6s used the same flywheels as V-8s).

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