[Dave at Pelican Parts]

The cases are basically identical, so starting with a 1.7 or 1.8 or 2.0 means the same work. The rod journals don't affect the case at all.

Most of the 2.4 kits require machining the cylinder spigots to fit the larger P&Cs. If you're going to swap the 2.4 stuff over to a new case, you'll have to get that machined no matter what you start with.

The 2.4 P&Cs are either worth quite a bit, or not much at all. It depends on what exactly they are--what they're made of, etc. The aluminum Nickies cylinders are worth some decent money, the knock-offs of those are worth less, and the regular cast-iron cylinders aren't worth a whole lot.

Similarly, the heads vary in value a lot. Depends on what condition they are in, and what work has been done to them. They almost certainly have been cut for the large cylinders, and if a good shop did the work they should have re-worked the ports and valves and such to support the flow for the larger displacement.

--DD