In short, BluePrint Engines is very close to being a 100% new ONLY engine company. Meaning no cores or reman parts at all. The hemi started design as looking at a 5.7, and stroking to a 392. When we decided that in year from now, we won't even have a teardown area, we had to look at a new block option. It would cost no less to buy a 5.7 new block, vs a hellcat block....so no reason to not build a 426. In the future I see us tooling up and doing a hemi block ourselves, and probably heads. But first run will be 6.2/6.4 block, and apache heads. That's what I have to report as of today. It's pretty exciting. Sorry it's been slow! But it's getting close!