1964 and 1966 273 Swap Questions

[elm13]

Hello All

Here I am again needing help and showing off my ignorance. I have a 1964 273 that can not be salvaged as far as the block it self goes.

I was given a 1966 273. I was in the process of having my 64 machined and rebuilt when the bad news came that the 64 block was no good.

What I am trying to find out is this... I have a 4 barrel manifold from a 65 273 that was going on the 64.

Can the 65 4 barrel manifold be used on the 66 273?
Can the heads from the 64 be used on the 66? (I had already had the 64 heads rebuilt)
Is there anything I need to plan for that is not "swappable" with the 66 block.

I hope this was not too confusing. Thanks for any and all help.

 

[toolmanmike]

Not without modification. The 64 and 65 273's had smaller intake bolts and at a different angle than the 66 and newer engines.

 

[65Val]

If you use the early heads ('64) on the '66 block, the '65 intake will be just fine. Everything else should swap as well.

 

[67Dart273]

Or to put it another way, it's the heads and intake, and not the block, that is the problem.

 

[elm13]

Thanks so much! This is a big help!!! I will swap the 64 heads over to the 66 block and then will use the 65 4barrel intake too.

I greatly appreciate the help and instruction!

 

[pishta]

That will work fine.

 

[toolmanmike]

That will work fine.

Yes. I should have written more to explain.lol