A advise

Mouse action said

I have a 64 valiant with a 273 ,what motors will fit without changing any thing I got now
Like trans,exhaust,motor mounts,rad.etc.?…
Thanks.

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273 or 318. Use an adapter to adapt the larger torque converter hub on a 1968 up crank. A 273 will work great in a 64 Valiant with some easy upgrades.