Where do the weights go on a 360/727 converter? - Moparts Forums

Register Log In Moparts Forums Moparts Question and Answer Where do the weights go on a 360/727 converter?

Print Thread

Where do the weights go on a 360/727 converter? #882813 12/17/10 11:51 PM 12/17/10 11:51 PM
Joined: Apr 2007 Posts: 2,327 Glendale, AZ 6 69L78Nova OP Banned. Forever.
69L78Nova OP Banned. Forever. 6 Joined: Apr 2007 Posts: 2,327 Glendale, AZ	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)

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
Joined: Jul 2008 Posts: 313 Ct, Oxford 340swing enthusiast
340swing enthusiast Joined: Jul 2008 Posts: 313 Ct, Oxford	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, 6363764-IMG_0487.jpg (147 downloads) Last edited by 340swing; 12/18/10 12:26 AM.

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
Joined: Apr 2007 Posts: 2,327 Glendale, AZ 6 69L78Nova OP Banned. Forever.
69L78Nova OP Banned. Forever. 6 Joined: Apr 2007 Posts: 2,327 Glendale, AZ	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)

Re: Where do the weights go on a 360/727 converter? [Re: 69L78Nova] #882816 12/18/10 10:53 AM 12/18/10 10:53 AM
Joined: Mar 2003 Posts: 571 Beaverton, OR, USA Alikazam super gas
Alikazam super gas Joined: Mar 2003 Posts: 571 Beaverton, OR, USA	Could always get the B&M Flex plate so you can use a neutral balance converter with the 360. Just another option for you that would not require welding! Good luck.

Re: Where do the weights go on a 360/727 converter? [Re: 69L78Nova] #882817 12/18/10 11:16 AM 12/18/10 11:16 AM
Joined: Dec 2007 Posts: 387 n/w, PA D demonH1B enthusiast
demonH1B enthusiast D Joined: Dec 2007 Posts: 387 n/w, PA	The fsm lists the stall of the '71 340 converter as 2150-2450, installed behind a '71 340 engine.

Re: Where do the weights go on a 360/727 converter? [Re: demonH1B] #882818 12/18/10 02:20 PM 12/18/10 02:20 PM
Joined: Oct 2010 Posts: 606 Montana Y Yancy Derringer mopar
Yancy Derringer mopar Y Joined: Oct 2010 Posts: 606 Montana	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........................

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
Joined: Sep 2005 Posts: 12,481 Chino Valley RodStRace I Live Here
RodStRace I Live Here Joined: Sep 2005 Posts: 12,481 Chino Valley	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...

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
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	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

Re: Where do the weights go on a 360/727 converter? [Re: Yancy Derringer] #882821 12/18/10 03:31 PM 12/18/10 03:31 PM
Joined: Apr 2007 Posts: 2,327 Glendale, AZ 6 69L78Nova OP Banned. Forever.
69L78Nova OP Banned. Forever. 6 Joined: Apr 2007 Posts: 2,327 Glendale, AZ	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........................ Yeah, you do have quite a point. I was thinking about going with the B&M plate, but have heard about some vibration issues. This 360 is far from a high performance engine, but thinking about it logically, I might just try it for $80. Its too mych of a pain to pull both crossmembers (transmission AND torsion bar crossmembers) if the weights are welded in the wrong place. I just though there was an obvious location for them. But there does appear to be no room for error. Ill just order the plate. So its going to be the #10236 plate then right? 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)

Re: Where do the weights go on a 360/727 converter? [Re: 69L78Nova] #882822 12/18/10 04:28 PM 12/18/10 04:28 PM
Joined: Oct 2003 Posts: 7,506 Az Crizila master
Crizila master Joined: Oct 2003 Posts: 7,506 Az	Quote: 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........................ Yeah, you do have quite a point. I was thinking about going with the B&M plate, but have heard about some vibration issues. This 360 is far from a high performance engine, but thinking about it logically, I might just try it for $80. Its too mych of a pain to pull both crossmembers (transmission AND torsion bar crossmembers) if the weights are welded in the wrong place. I just though there was an obvious location for them. But there does appear to be no room for error. Ill just order the plate. So its going to be the #10236 plate then right? You don't have to pull the torsion bar X member, but I agree with the B&M flex plate in place of weights on the convertor. I did that some years back with an E58 motor with no vibration problems. Fastest 300

Re: Where do the weights go on a 360/727 converter? [Re: Crizila] #882823 12/18/10 07:28 PM 12/18/10 07:28 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	You have the weights in hand. If you can find the template (& iirc the locating measurements on the diagram (posted on here) were down to at least 2 decimal places) I'd use em. For the most part it made em smooth (enough) from the factory and for sure cheaper than shelling out for the plate and the plate is not perfect as either one can only get it (that end of the crank) so close live every 24 hour block of time like it's your last day on earth

Re: Where do the weights go on a 360/727 converter? [Re: RapidRobert] #882824 12/18/10 08:59 PM 12/18/10 08:59 PM
Joined: Jan 2003 Posts: 75,008 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,008 U.S.S.A.	Do the B+M plate , that way if you don't like the convertor you have you can easily get another that is neutral balance and swap it in.

Re: Where do the weights go on a 360/727 converter? [Re: JohnRR] #882825 12/18/10 09:56 PM 12/18/10 09:56 PM
Joined: Mar 2003 Posts: 571 Beaverton, OR, USA Alikazam super gas
Alikazam super gas Joined: Mar 2003 Posts: 571 Beaverton, OR, USA	Part #10236 looks correct to me.

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
Joined: May 2008 Posts: 1,131 Thigh-Gap Junction @ @#$%&*! New user name, Same old jerk!
@#$%&*! New user name, Same old jerk! @ Joined: May 2008 Posts: 1,131 Thigh-Gap Junction	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.

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1