“LA” Engine Replacement Cylinder Head

Link does't work. But anyway if they are open chamber heads intended for a 340/360 you will loose a lot of compression and kill off the low end you have now. I wouldn't unless you plan to up the compressionof the engine at the same time.

Magnum heads would be a much better choice than even 302 heads. Note: adding 2.02 intake vales to a 302 head would only net you a gain if you did some porting to take advantage of the bigger valve.