Someone needs to start re-casting 340 blocks

Killer6 said
To answer that question, it's done by the mfrs., Chevy C010 blocks are large main 4" bore blocks. For everything from the 302" Z engine to HD blocks in trucks, so yeah, they do.......

Far as I know Chevy changed whatever year from 2.30" to 2.45" mains not that a car 327 came with 2.30" and a truck 327 came with 2.45".