349 CI on the cheap

318 pistons are around $80.00 and rings are another $30.00 or so and you wouldn't have to change the size of the rods on the small end. Which is as cheap as the chevy stuff. The thing that I like about the hyper's is that they have the valve reliefs already in them and placement is right. I may shelf the cast ones and use the hypers. They may be a bit more but should be worth it.