Re-drilling a flex plate?
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I have the parts needd to make the swap to the 700R4, but am being told that the flex plate holes won't line up with torque converters. Can these be drilled without major issues?
Thanks Jake |
Re: Re-drilling a flex plate?
This is for a Chevy SB? If so where is the rest of it? You can get a dual pattern flex plate.
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Re: Re-drilling a flex plate?
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No, this is the adaptor flex plate for mating a new 700R4 trans to a 305 V-6
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Re: Re-drilling a flex plate?
Why not take it to a machine shop
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Re: Re-drilling a flex plate?
I can, I was just making sure it was something that had been done before but others. This is the first time I've gotten into this. Drilling a hole should be easy, I have press. I have to get a torque converter anyway.
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Re: Re-drilling a flex plate?
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Re: Re-drilling a flex plate?
Does the kit use the flywheel so you can have a ring gear, then use the Y adapter to mount the torque converter?
+1 on taking it to a machine shop. |
Re: Re-drilling a flex plate?
Balance is going to be your primary concern here. Things will have to be drilled EXACTLY evenly, or you're going to get shake/vibration. On reciprocating components--be it crankshaft, flywheel, driveshaft, etc., just an ounce or two will make all the difference in the world.
Don't believe me? Go duct-tape a washer to your driveshaft and drive down the highway. |
Re: Re-drilling a flex plate?
Rotating. Reciprocating is pistons and half the connecting rod. :D
But yeah, you don't want to wing it with a cordless Makita and expect to be happy. Machine shop, Milling machine, rotary table, win! |
Re: Re-drilling a flex plate?
Skinny Brought something up about the flywheel. I am not familiar with the engine you are using, so apparently the original set up used a fly wheel then the flexplate to the Torque converter. If that is the case the flex plate will have to be drilled and it will have to be dead on
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Re: Re-drilling a flex plate?
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I have the 305 V-6, with a solid (HEAVY) flywheel; must weigh about 40lbs. another member sent me this picture of how the flex plate bolts onto the Flywheel, then the torque converter. I’m doing my best to try and find a Torque Conv. to will line up and of course fit the shaft from the trans, but it that does not work I’m stuck with drilling. I’m trying to put in a 700R4.
The area that is circled is where the flex plate bolts to the TC. I agree that BALANCE is going to be a the thing. |
Re: Re-drilling a flex plate?
Yeah didn’t pay enough attention to the picture And that was a fly wheel and not a flexplate laying there. I would think this has been done before. do you have the original TC I am wondering about the thickness or size of it compared to the 700 R You need to find a torque converter and then go from there
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Re: Re-drilling a flex plate?
Racers have torque converters manufactured allllllll the time.
Call a torque converter company and tell them you need one for "X" transmission with mounting blocks in "Y" position. |
Re: Re-drilling a flex plate?
Thank You Brad.
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Re: Re-drilling a flex plate?
Brad, I'm hitting some walls on the 'net, would you have any leads for converter makers?
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Re: Re-drilling a flex plate?
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Did you look here?
https://transmissionadapters.com/col...-to-chevy-auto |
Re: Re-drilling a flex plate?
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Or this one,...
https://transmissionadapters.com/col...custom-vee-six |
Re: Re-drilling a flex plate?
Quote:
"PATC performance torque converters are manufactured in-house..." |
Re: Re-drilling a flex plate?
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Got her done.
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