Early poly heads on 318-340-360

[mikedevore]

Anybody got info on installing the poly heads from the 50's & 60's on the modern small blocks.
Any performace results?
I hear that there are some good numbers on this conversion.
There is even an aftermarket intake for it.
Whats the word on the street?

 

[GEO]

Never heard of that

 

[mikedevore]

I saw a blurb on FaceBook from Chrysler Power Magazine about it.
It showed the interchangability between the two & the aluminum intake.
Not very detailed.

 

[rumblefish360]

I detaled a post about this. Do yourself a huge favor. Keep the Poly heads off the LA block.
I posted many pictures.

While it. Is possible, the pains take. To swap the ill flowing heads over is ridiculous in effort requiring work that is over the top. This is also true of a LA head on a Poly block.