360 heads on a LA 318 vs Magnum heads on a LA 318

I did a magnum head swap on a heavily worn 360 before my 340 was built. This thing was the absolute typical pistons a mile down the hole smog dog engine and for what it was it ran hard. Had the Summit k6901 cam and aftermarket valve springs and retainers and that's it. The engine was so worn I saved the heads after I had the 340 and we put the same ones on my friend's 318 magnum (the heads he got with it were cracked pretty bad), has a small Lunati cam and runs really hard.

The other thing I would say is the combustion must be a lot more efficient because both of the engines run really clean. Both had the same air gap manifold and a 600 holley.

I personally wouldn't run any OEM LA heads on anything anymore.