Everything but the driveshaft. Should be able to shorten and rebalance it.
Most should interchange, the driveshaft may not
A74 engine will have smog stuff on it but easy to remove or block off
Does the 66 have anything there? Maybe swap some parts. Driveshaft from 66 should fit the 74 trans
Thanks.
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The driveshaft is there but the car is a manual trans.
If a 66 it should work, maybe just change the yoke. It depends on which trans...