Overdrive Transmission for 630 HP motor

I think I read somewhere back in post #1 that he was looking for a Mopar transmission .
Plenty of Mopar stuff that can handle it.

Back in the 60’s,,,,,Dick Landy was driving an altered wheel base car for Mopar .
It had a nitro Hemi in it,,,,and a 727 !
It Worked behind about 1500 HP at the time !

Yes,,,he blew a few transmissions too,,,but only after several runs .
A good 727 can easily hold up to 800 hp or more,,, with some good aftermarket parts.
And this Ops car is not going to be on a sticky drag strip with slicks,,,,behind Nitro !

I agree with the guy earlier ,,,call Cope !
You don’t need an overdrive unit,,,,,just a good rear ,,with a decent gear .

Tommy