What is the best way to get an overdrive auto in a 67 Barracuda?

Carnut76 said

I talked to a very competent trans builder a couple of days ago, he called the 200r4 a tinker toy and would likely burn up at the track if you thrashed on out on the street, basically he said they were good but not for longevity because the clutch packs, and other components are still small and aren't made of magic material, anyone have any hard miles on theirs yet to debunk this? He said a 4L80e would be a better build but not sure it would fit in the tunnel, parts are adding up fast, the Gear Vendors is starting to look real good again. It is a .78 OD I believe.

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Then I'd say that guy isn't a competent trans builder. Yes there are stouter options than the 200-4R but those options usually end up needing the tunnel cut to fit. Plus the .67 overdrive is awesome. There's a guy here who runs an RX-7 that was 360 powered and is now LS powered. Can't think of his name but he ran in drag week twice, over 1000 passes and no issues on his 200-4R in his 10 second ride. He runs an extreme automatics trans. If they aren't built right, they won't last. If they're built right, they'll last and will handle up to 1,000 hp. People are more ignorant about these transmissions than you can believe.