Would you notch a 727 bell that already has an inspection port in it?
Interesting work,best of luck!
Thanks!
This part turned out to be a piece of cake compared to setting up the Edelbrock 4bbl TB to accept factory throttle and TV cables. Didn't really want to go the Lokar route.
On that note, to make sense of that statement....
I have a small confession to make - this isn't really an A body! lol. Although this drivetrain may very well end up in one. Thinking 67 to 69 Dart or notchback Cuda.
I came here for help cuz I know you guys tend to get creative with the transmission stuff, so thanks to all who responded
The flex plate needs to be from the 5.9 to match your 5.9 engine, as it is externally balanced. The torque converter needs to be neutrally balanced, so as not to affect the 5.9 engine's factory flexplate balance. If you add that weight from the torque converter, you will have thrown off the balance provided by the 5.9 flexplate and harmonic balancer.
I had to file on the side one of the 4 mounting holes on my 5.9 flex plate to bolt it up a neutrally balanced torque converter for my old 727.
Once I built a neutrally balanced Magnum based 408" stoker, I used the neutrally balanced 5.2 Magnum flex plate and had my custom converter made with the pads in the correct place so I didn't have to file one of the mounting holes for it to fit.
I figured somebody might catch that :)
Under normal circumstances you would be 101% correct. I'm not normal though, so you're only 97% correct. (nah j/k - you remain at 100% correct)
I guess if you want to get technical the torque converter is neutral balance now that the weight has been removed, lol.
And per my scientific super hi-tech balancing test (I'm still laughing at that...) that TC's original weighting was pretty close to the factory 5.9 weighting.
Which makes me wonder - since the factory motors aren't ultra precision manufactured, I wonder how many grams off it would have to be before you'd really notice it?
But yes, I didn't trust my method and decided to stick with the original weight.
I was lucky in that I had all three flexplates available. The 5.9 90 degree FP's weighting was close enough that I almost used it, but decided not to. The 93 NB/offset flexplate happened to fit the 727 TC's offset so I went with that one.
When the stroking gets done the whole thing goes to neutral balance, with the 98 5.2's 90 degree/NB flexplate and a converter with some stall, built with 90 degree pads to match the flexplate - as you said.
So, I'm not trying to go all secret squirrel jerkiness on this, but there's a few things going on that I'd rather not go into at the moment.
In closing I will just say this.....
I'm aware of the balance issues you mentioned and I agree with you absolutely. However, I also believe this setup is correct. (Try and make sense of that! lol)
I will definitely be posting up the results. I figure it needs about a weeks worth of work - which as we all know means two months in real life! rofl!
Thanks again for all the help
