This build thread is a bit overdue.
Been toying with the idea of building a big Puma for the dunes over the last couple of years. No donor bottom end was supplied so the majority of bottom end parts are NOS or OEM take-outs - definitely NOT a cost effective way to build a motor!
Started with a set of OEM ATC cases (complete with VIN stickers), courtesy of @Redred55:
Puma top end shows up @ Hybrid Engineering:
Had Crank Works build me a +6mm from OEM halves. Now for the crank porn: