318 Poly needs info !

318 poly engines , are they any good ? i bought a 64 an 63 polara without no engines , im very familiar with th la an magnum engines , but i dont know nothing about the big 318s , usually racers say that older the block is ... stronger the material was , are they worth it ? the engine is in good condition for sale with a 727 attached to it , but was thing to go with a classic more popular 440 for the polara , or even a small block , let me know what you guys think !

btw: are they as powerfull as the wedge engines once modified ?