Proven Powerglide Build Thread - Page 2 - 460 Ford Forum
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post #16 of 26 (permalink) Old 10-25-2012, 12:57 AM
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I had 2 friends both break their PG cases this year at the track, both make around the 800 FWHP mark. But, both breaks were in the bell housing area of a stock GM pattern bell. They have since stepped up to the Reid cases and man, they are NICE! I will be buying one with the BBF bell for mine. Nice to not need a blanket or external shield especially if you have a tight trans tunnel.

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post #17 of 26 (permalink) Old 10-25-2012, 08:55 AM
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If you can swing it the aftermarket cases are very nice.

Stock glide cases seems to be the luck of the draw. I've seen them hold up fine in 1K hp cars and seen them break in 400 hp cars. Variations in the casting thickness. I broke one in my sbf 69 mustang, replaced it and ran the next one for years until I sold the car.

They will break at the bell, but the majority of the time it seems like they break at the rear near where the reverse piston is in the case. Case is thin back there. Some are obviously too thin.

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post #18 of 26 (permalink) Old 10-25-2012, 07:56 PM
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another topic worth looking at is how to mount a glide.with motor plates the trans mount takes all the stress.i use limiters on the block and on the trans where the mount was.i think the trans mount setup can cause a broke bell,IMO.
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post #19 of 26 (permalink) Old 10-25-2012, 08:52 PM Thread Starter
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Good points! Mine has a motor plate with limiters to the top front "engine mount bolt" one both sides currently.

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post #20 of 26 (permalink) Old 10-26-2012, 09:09 AM
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sbc with solid front and rear mounts , some will break one the first pass . others make it to 3 passes are rare
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post #21 of 26 (permalink) Old 10-27-2012, 04:09 PM
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Eric, are you using a mid plate?

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post #22 of 26 (permalink) Old 10-27-2012, 04:40 PM Thread Starter
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I do not currently have one on the truck, but it would be pretty simple to add one. I have an engine plate with limiters on both sides of the block and and OE trans bushing.

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post #23 of 26 (permalink) Old 08-01-2014, 06:52 PM
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Quote:
Originally Posted by bigblok86ranger View Post
Do we have a PG builders in house that would care to share the secrets of making one live?
Please pardon my ignorance but I haven't done any drag racing for 30+ years.
A PowerGlide is two-speed, right? So, how would this be better in the quarter mile than a C6 or C4 with three speeds. Are these BBFs so powerful that two speeds are an advantage?
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post #24 of 26 (permalink) Old 08-02-2014, 08:34 AM
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Quote:
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Please pardon my ignorance but I haven't done any drag racing for 30+ years.
A PowerGlide is two-speed, right? So, how would this be better in the quarter mile than a C6 or C4 with three speeds. Are these BBFs so powerful that two speeds are an advantage?
Just my opinion.
A powerglide is lighter than a C-6 with much lighter internal rotating parts.

It's stronger than a C-4. Besides the strength, the powerglide has a much more surface area on the internal clutch plates.

Powerglide has more aftermarket support. Every single piece inside and out is available from the aftermarket. If you wish, you can build a complete unit without a single GM part number. You can also take a stock unit, add a few hundred dollars in aftermarket parts and it's good for a a lot of power. The sky is the limit on how bulletproof you want to build it.

Simple, with less parts less to break. It takes longer to pull it and install than it does to freshen it up.

The single shift on a pass makes it easier to be consistent. Also, the higher gear ratio of first gear vs a 3 speeds first gear calms the car down a little on launch and can help when track conditions are bad.

Torque converter selection IS crucial though. With the correct converter I've never seen one that was slower than a 3 speed, most were quicker, with a few showing no change it the 3 speed combo was optimized.

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post #25 of 26 (permalink) Old 08-02-2014, 08:57 PM
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X2 Dave,great answer. I'm a Ford guy from the word go,but if you want consistency AND durability,go w/good aftermaket parts in a Glide. imo,a C4 behind a high powered BBF is as bout as useless as a BBF main girdle.

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post #26 of 26 (permalink) Old 08-04-2014, 09:45 AM
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Quote:
Originally Posted by David Cole View Post
Just my opinion.
A powerglide is lighter than a C-6 with much lighter internal rotating parts.
<snip>
The single shift on a pass makes it easier to be consistent. Also, the higher gear ratio of first gear vs a 3 speeds first gear calms the car down a little on launch and can help when track conditions are bad.
<snip>
Very well stated. I understand completely now. Thanks for taking the time to explain this.
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