Does anyone know if the two are interchangeable?( will heads, intake/ exhaust manifolds etc etc) or how I can find out if they are. I'm assuming they are but am not certain.
I found an engine/auto trans on line for $250. It turns but hasn't started in years. Thinking of rebuilding it so I can still drive my Dart.
Can anyone see any drawbacks to doing a complete rebuild of the 67 /6 then dropping it in my 73 ?
Would it be advisable to keep one as a spare?..Not sure if this is a concern where others live, but wreckers around me don't keep anything more then 15 years old, so if my slant bites it, I'm SOL.

Thanks in advance

The '67 crank won't accept your '73 torque converter as the hole in the crank is too small. You can swap in the engine/trans together no problem. Almost everything else interchanges.

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Joshua

You could swap cranks between the 73 and 67 engines or get the 67 crank machined to the larger diameterwhile the motor is being rebuilt.

thank you...would one motor/tranny have any advantage over the other if a total rebuild was going to done?..

Assuming that you were going with more compression and an aftermarket cam on a ground up build, either block is fine, either head will work fine after you install new valves and seats (although the 1973 head may a have a slightly small combustion chamber volume stock compared to the 67, so less milling may be needed to get your target numbers).

If it were a question of stock engine with a rering/regasket you took care of the crank pocket thing, the 1973 engine stock would have the better camshaft, but that's about it on a side to side comparison.

Thank you
Now begins the hard part of learning what and how to change/rebuild everything. At least I can still drive my Dart while I take my time to do the spare engine up right..no rush .

thanks for your help Reed, Joshie225 and Duster.

Keep the 1967 cam and have the lobe profile reground. You can save some money and wind up with a good cam.

great idea..thanks Reed...probably end up keeping one complete engine as a spare or for parting out down the road. Hard to locate original parts up this way.