318 Poly A engine in a 67 Cuda

Dale Davies said

Weight. They are heavy compared to the LA engines. Valve layout is like the BBC, 385 Fords and Cleveland Fords, but preceeded all those.
They were a lower cost to produce than the hemis. The LA series is lighter and was lower cost to produce.

Click to expand...

The R blocks are heavier yet and 4000$. The Poly heads are 10 pounds heavier each bare and the block is 23 pounds heavier than an La before it's bored to 4". The main webs are more solid not hollowed on one side and you can beef the bottom end up to hold 750 hp safe that the La can't take. If the poly heads wont fit I'll adapt the poly block to an La head and then supercharge it down the road. That's why I don't want to run a 340 or 360. They won't take the power I'm going to run as well. I can live with the extra weight if it will take the power.