My 14" delta has the riser block kit, but also a much larger motor, which really makes a much bigger difference to the performance than just the riser block. Honestly it's probably not worth adding the riser without a motor upgrade.
I can't remember who posted it but someone posted a pic of a giant resawing bandsaw with like a 4" wide resaw blade. There was a question posed to the owner of the saw, how often do you have to replace the blade? The answer was something like, "I've never noticed, it has a 10HP motor."

With 10hp or thereabouts, you could probably resaw with just a smooth piece of metal for a blade