Where do the weights go on a 360/727 converter?
#882813
12/17/10 11:51 PM
12/17/10 11:51 PM
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Joined: Apr 2007
Posts: 2,327 Glendale, AZ
69L78Nova
OP
Banned. Forever.
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OP
Banned. Forever.
Joined: Apr 2007
Posts: 2,327
Glendale, AZ
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I am putting the 727 back in my 78 Fury. I dont have the original converter anymore, but I do have a stock converter out of a 71 340 E-body. I need to weld the weights on the 340 converter. I have the new weights, but I dont have the template. The 340 converter does have a drain plug, but I cant remember exactly where they should be positioned. Does anyone have a pic of a 360/727 converter? I have the 2 smaller individual weights, not the larger single weight. Can anybody help? BTW, does anyone know the stall speed of a factory 340 converter in 71? It think its around 2000-2200 right? It will be going behind an E58 360, with an XE256 cam, headers, 2 1/2" duals, 3.21s, in a big old boat Thanks in advance!
1969 Nova 454/M21/3.31 Mild mid-11 second weekend cruiser
1994 F150 XLT Super Cab 2WD 5.0/4R70W/3.55 (Daily driver)
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Re: Where do the weights go on a 360/727 converter?
[Re: 69L78Nova]
#882814
12/18/10 12:14 AM
12/18/10 12:14 AM
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Joined: Jul 2008
Posts: 313 Ct, Oxford
340swing
enthusiast
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enthusiast
Joined: Jul 2008
Posts: 313
Ct, Oxford
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This is a 74 360 t/c out of a 727. The weights are on either side of the drain plug.I can't post pictures for the last two days. I have posted many before is the site having troubles or is it me?Got it,
Last edited by 340swing; 12/18/10 12:26 AM.
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Re: Where do the weights go on a 360/727 converter?
[Re: 340swing]
#882815
12/18/10 12:42 AM
12/18/10 12:42 AM
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Joined: Apr 2007
Posts: 2,327 Glendale, AZ
69L78Nova
OP
Banned. Forever.
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OP
Banned. Forever.
Joined: Apr 2007
Posts: 2,327
Glendale, AZ
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Awesome! Thank you! Now does anybody know the factory rated stall speed of a 71 340 converter?
1969 Nova 454/M21/3.31 Mild mid-11 second weekend cruiser
1994 F150 XLT Super Cab 2WD 5.0/4R70W/3.55 (Daily driver)
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Re: Where do the weights go on a 360/727 converter?
[Re: Yancy Derringer]
#882819
12/18/10 02:28 PM
12/18/10 02:28 PM
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Joined: Sep 2005
Posts: 12,481 Chino Valley
RodStRace
I Live Here
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I Live Here
Joined: Sep 2005
Posts: 12,481
Chino Valley
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Quote:
Anybody who thinks they're gonna balance a high performance engine by welding weights on from a picture and a tape measure are sadly mistaken........................
I agree. There is a sheet that comes with the MP weights, but I'd still go with the B&M SFI balancer at under a hundred bucks and be sure it's right...
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Re: Where do the weights go on a 360/727 converter?
[Re: RodStRace]
#882820
12/18/10 02:32 PM
12/18/10 02:32 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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Someone way back did post a meaurement & maybe a diagram to get em located just right.
live every 24 hour block of time like it's your last day on earth
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Re: Where do the weights go on a 360/727 converter?
[Re: 69L78Nova]
#882826
12/19/10 09:36 PM
12/19/10 09:36 PM
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Joined: May 2008
Posts: 1,131 Thigh-Gap Junction
@#$%&*!
New user name, Same old jerk!
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New user name, Same old jerk!
Joined: May 2008
Posts: 1,131
Thigh-Gap Junction
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Quote:
I am putting the 727 back in my 78 Fury. I dont have the original converter anymore, but I do have a stock converter out of a 71 340 E-body. I need to weld the weights on the 340 converter. I have the new weights, but I dont have the template.
The nice thing about the weighted flexplate is that you can use neutral converters and keep the flexplate with the engine. If you can't get the flexplate, the Mopar Chassis manual has the specs for removing weight from a flywheel, you just need to add the weight 180 degrees out from the diagram. The spec is 16.79 inch-ounces for a 360. That just means that if your weight is 16.79 ounces it needs to be 1.0 inch from the center. Similarly, if the weight is 1.0 ounce it needs to be 16.79 inches from the center. It's just the weight times the distance that must equal 16.79 inch-ounces. The factory spot welded the weights on but most people have mig welders instead. To adjust for the added filler wire you can simulate the weight of say 10 seconds of welding by running the welder in the air and cut off the wire that comes out and put that on the scale with the weight you intend to add. This can be done as accurately as the B&M plate is made. How good is your math and how accurately can you measure? The hardest part is getting the angular position right, but that's the least sensitive aspect and a couple of degrees error isn't a big deal.
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