More 8 bolt flexplate questions

RE

chief455 said:
what spacing was way off?
torque convertor holes for MM mounting?[/QUOTE

At the crankshaft. In other words when the flexplate was bolted up it was about 3/8" forward. When I would instal the starter it would bind. The performance auto flexplate I purchased from them was in a batch of defects and was supposed to be destroyed per them. (But would not exchange it or refund me). I will see if I can find my original post with pictures and link it here.
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Re

chief455 said:
still wondering what spacing was way off? did you have a CV converter with the large bolt pattern?
You know, with any convertor/flexpate, especially aftermarket stuff, you need to put the convertor fully into the transmission, and slide out ~ 1/8" - any space between the mounts and flexplate at that point will need to have spacers take up. I have had to slide grade 8 washers between convertor and plate a dozen times. Is this the spacing you mean?



Roger, that;)
this flexplate has enough holes to fit many convertors - should not be a crank hole or convertor hole issue:confused:
164 tooth flexplate internal balance
Features 10.5 in. and 11.5 in. Ford bolt patterns, and 10.75 in. and 11.5 in. GM bolt patterns.
Meets SFI 29.1 safety ratings
Available in either 6 bolt or 8 bolt crankshaft bolt patterns
6 bolt configuration commonly found on all Crown Victorias and Panthers, most Mustang GTs 96-04 and Mach 1s
8 bolt configuration commonly found on Mustang Cobras and in some 5.4 truck motors.
Click to expand...

Chief455 did you see the picture? I used an edge 10.5" 3500 stall converter. It Scared the crap out of me the first time I nailed it lol. A friend of mine had the exact flexplate we test fit it on mine and it fit perfect. Thanks for your suggestions I may try spacer. Didn't mean to hijack this thread. Walt
 
woodytxp71 said:
chief455 said:
what spacing was way off?
torque convertor holes for MM mounting?[/QUOTE

At the crankshaft. In other words when the flexplate was bolted up it was about 3/8" forward. When I would instal the starter it would bind. The performance auto flexplate I purchased from them was in a batch of defects and was supposed to be destroyed per them. (But would not exchange it or refund me). I will see if I can find my original post with pictures and link it here.
Click to expand...
so it was in isolated instance, thus others are running this same plate without issue. mystery solved!
woodytxp71 said:
Chief455 did you see the picture? I used an edge 10.5" 3500 stall converter. It Scared the crap out of me the first time I nailed it lol. A friend of mine had the exact flexplate we test fit it on mine and it fit perfect. Thanks for your suggestions I may try spacer. Didn't mean to hijack this thread. Walt
Click to expand...
thanks for showing the pics, makes sense. 3500 convertors are the bomb!!
this detail from you, and MOTOWN should help the op and anyone reading decide on an 8 bolt flexplate.
Click to expand...
 
So the one I got off Amazon came in and we believe it might work out OK.

It is the PRW 1828111 Xtreme Duty SFI-Rated 164 Teeth Steel Flexplate for Ford 4.6L DOHC 1992-06

http://www.amazon.com/gp/product/B004L2UM2Y/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

The 8 bolt crank seems to line up fine on this particular one, though there were reports of a defective batch where some were not correct.

The converter pattern looks like 10.5" vs 10 5/8" so the holes will need to be opened up just a little to accommodate the factory converter.

There is a difference in offset, or depth of the flexplate vs factory. There is about 1/8" difference, "thinner," or closer to the block and/or starter gear.
The one woodytxp had from the bad batch, says his was more like 3/8" too thin, causing bind with the starter.

As RacerX shows here:
http://www.mercurymarauder.net/forums/showpost.php?p=1376976&postcount=5

Does anyone know if the 8 bolt crank has any difference vs the 6 bolt in how far it extends past the rear of the block?

Shop says they're pretty sure they can work with it.

I think my biggest concern at the moment is if that 1/8th may interfere with the starter? I guess if there were, the starter could be shimmed out?
 
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I am just running into this issue myself. What did you end up doing to solve your issue?
 
What exactly is your issue?

My shop ended up using that flexplate but I'm not 100% sure if they ended up having to open up the converter holes or not. I do not think they had to shim the starter.
 
I dont have a problem yet haha was just trying to avoid any issues with the flex plate. I ordered the one off of amazon yesterday so if you say that is the one that you used that makes me feel better!
Thanks!
 
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