Found this while looking for poly parts. The description says this poly has 360 J heads. Has anyone heard of that? I guess anything is possible but first time for me. What cam grind could be in there? 400 HP for a non stroked poly is pretty good!!!
Something is not right.
First, let me say, that you can pout LA heads on a Poly engine but it will not work. The amount of machining and welding to close the water passages from the block to head would make this un worth the headache in doing so unless your in desperate need to build the engine to get you out of hell or the in-laws house.
the block is basically the same minus some freeze plugs and the in block water passage.
You would need to weld up the water passage from the inside of the block, in the lifter valley and figure out how to re feed the head good enuff to cool.
I have had posted shots of this to dismiss the "Wide block" thing because it isn't a wider block, just a different casting. The intake look wider because of the way the heads are and the way they attach.
This was done at FABO a long time ago.
Wonder if Gary P had any involvement on this? lol
Some how, I doubt it.
I had a guy tell me that early Hemi Heads would fit on a Poly Block.
I'm not the best on this, but it is the older engines that can swap heads. If the displacement is the same, in example, 354 HEMI could swap heads with the 354 commando engine of the same time.
Here are a few photo's of "LA" heads on a Poly block with a "LA" Holley Strip Dominator on top just to show that it fits.
First shot is a "LA" head and the problem area of the Poly block. Between the two intake ports is the water passage I mentioned. It is huge and would take a "REAL WELDER" to do the job right.
Next is the Strip Dom and the LA head on the poly block. It fits, wont work.
Third is a comparo of the "LA" head on the Poly. Think about what your looking at. Where exactly is everything located?
$th shot are just the engines on hand to fiddle with.