Poly motors?

I cant search, as im posting from my phone. Can you buy rebuild parts for these motors? What about speed parts? Are they worth messing with? What are the weaknesses/strengths of them? What transmissions bolt up? Thanks.

 

Same blocks as hemis... you can amke a Hemi out of a Dodge, Plyouth or Chrysler with a set set of pistons and heads... great motors as-is... breath pretty good, too.

 

All parts available just expensive as a hemi.

 

There are two places in boston that sells poly parts, got most of my stuff there. Andy Bernbaums and Roberts motorparts.

 

here's mine

 

The most common poly motor (1956-67 "A") is completely unrelated to any hemi engine.

 

You can get adapters to bolt just about any trans to them.

 

Anyone else have anything to say?

 

As hinted to by Panic, you really need to identify exactly which engine you have. There are two distinct poly series and besides the oil, not much interchanges.....


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Just say a 56 chrysler.. I have the hots for a 56 chrysler windsor. Every one of them i find has a 331 poly in it...

 

Great engine as is, no need to convert to Hemi unless you have the $$$ and no where else to throw it.
The heads flow well and the intake can be easily modified to accept a later carb. Electronic ignition and a new cam will wake it up (if it is a runner) and a rebuild should include more compression.

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Hemi tech index There is a section on your type of Poly & most tricks for hemi blocks work on your type of poly.

 

what modifications must be made to a poly to make it a poly/hemi??? i feel alot of machining must be first!!

 

The "A" poly can't be converted, only the hemi based. On hemi based you change pistons, the whole head assembly, push rods & ex mans.