Doing an engine swap. The engine is externaly balanced. The stock flex plate for the engine has balance weight on it. The trans flex plate and converter are an internaly balanced pair for the trans. Question. If I match up the loctaion excatly on the non balanced flex plate/ with the weighted flex plate. Can I just remove the weight and install it on the interaly balanced flex plate in the same location would that work ? Is it safe to do ??
If you weld it good, it should be safe. Will the balance be perfect? probably not. Will it be good enough? maybe, maybe not. are you gonna tell us what kind of engine it is, or do we have to guess?
Well this is on my 73 Javlin, which is externally balanced, The trans mission is a 87 jeep unit which is internally balanced. I know this is not the kid of thing for this forum. But as you can see I do have a vintage dodge truck. I thought if any group would know about this kind of thing H.A.M.B. guys would know.
Would it just be easier to drill the holes for the TC in the flexplate rather than guestimating balance weight placement?
Which transmission are you installing, and what did it have to start with? I think they used the (GM) TH400 then the(chrysler) 727 with those engines in Jeeps.
If the converter bolts to the externally balanced flexplate off the engine why would you not just use it. Seeing you say that it is "balanced to the transmission" sounds like you have been listening to a ******** artist extraordinaire as first, I have never heard of balancing a transmisison and every converter I have ever seen is balanced so it should have 0 vibration and be neutral in balance as far as the engine is concerned. You use the correct flexplate for the engine as long as the transmission bolts to it.
overdrive I guess I should have worded that differently The 360 is externally balanced(damper& flex plate) . The transmission is from a jeep 4.0L (it's a AW4 overdrive trans) the jeep 4.0 is internally balanced. The swap says to use the 4.0 flex plate on the 360, and to rebalance the 4.0 flex plate to match the weight of the 360 flex plate.
I just checked that out. I have to use the jeep 4.0 flex plate and starter to install the overdive trans..it was a good idea, but won"t work.
Curious what the problem is. Looking up flexplate for an 87 4.0 Cherokee and an 87 5.9 Grand Cherokee. Both are 13.83" diameter Both are 164 tooth What is preventing the 360 flex plate from being used? Does it have some offset? Have you compared your '70 360 flex plate to an '87 5.9 flex plate?
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