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post #1 of 6 (permalink) Old 07-05-2016, 09:42 PM Thread Starter
Join Date: Jul 2016
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Hello all. Steverino here. I just found this site and thought it would be right up my alley. I recently completed some upgrades on my '66 coupe. It had the original 327 ahead of the original Power Glide. Neither had ever been touched. Well, I found a 65 Corvette 327 that I had rebuilt, pulled the existing and put it on a cart for future use. The PG was replaced by a 4L60 from a circa 1992 Cadillac. It took a little work to get it all done, but it is on the road. Rides 100% better and sounds even better. Now to get a little enjoyment out of it before starting the next Impala project, a '66 convertible with a 396 and PG. I am looking for another tranny for that one. Not sure if I'll go with a stick or auto. Time and opportunity will tell. Hopefully I'll be started on that one before year end. Its a great way to spend those cold winter nights up here in WI - in a heated shop, working on an oldie. You can bet there will be posts in the future, lookin for input and ideas on some of the stuff I plan on doing. In the meanwhile, here's to the smell of powerful gasoline, burning rubber and the sound of cool pipes.
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post #2 of 6 (permalink) Old 07-06-2016, 01:32 PM
Join Date: Aug 2008
Location: Miamisburg, Oh.
Posts: 3,165
Blog Entries: 15
welcome to the site, the ol' 4-speed OD automatic is a great update on these old chevy's!

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post #3 of 6 (permalink) Old 07-07-2016, 03:41 PM
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Join Date: Jun 2014
Location: San Jose, CA
Posts: 284
welcome to the team!!
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post #4 of 6 (permalink) Old 07-09-2016, 08:45 AM
Join Date: Jan 2007
Location: Lewisburg, Ohio
Posts: 2,909
Welcome, Dont forget the 200 R 4 is a good replacement for a powerglide.
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post #5 of 6 (permalink) Old 08-04-2016, 05:55 AM
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Join Date: Jan 2016
Location: Maine
Posts: 116
Another option is the overdrive kit from It basically turns your bullet proof 2 speed powerglide into a close ratio 4 speed.
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post #6 of 6 (permalink) Old 08-04-2016, 10:13 AM
Join Date: Jan 2006
Posts: 12,456
Welcome to the Team!

The big Impala and the Corvette where the only two cars that you could get a bigger big block installed in. If you wanted a COPO in a Camaro it had to be by way of a dealer install or a COPO. Not so in in the 1966 Impala. You could just check the RPO box to order it.

I would recommend bagging and tagging the 396 for a Camaro owner looking for a BBC. I would build a 496 BBC using a 454 out of a pick-up truck that has a 4L80 transmission behind it. You can put 396 decals on it or 427 and no one will be the wiser.

In 1966 a BBC was a high compression monster, with today's pump gas compression ratios you have to go big to get any response out of the engine. A 400 SBC will blow the doors off of a 402 BBC any and every day of the week. Ignore the small bore 396 as if it were a two hundred pound boat anchor slowing your car down (the difference in weight between the SBC and the BBC)

Big Dave
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