Quoting from Go-westy's site for their 2268cc bored and stroked motor:
      Specially machined crankshaft with 80mm stroke.
      Specially machined connecting rods for 80mm stroke.
      Go Westy exclusive modified 95mm pistons.
      A different, exclusive GoWesty proprietary camshaft grind specifically
      for this engine.
      This engine requires 91 octane fuel and will pass tail pipe emissions
       test.

 Golly... it sounds much better to have a bunch of un-obtainable replacement
parts in my motors rather than on of the most popular motors on the
planet...

 I'm sure Go-Westy's motors are great and if I ever get an off-road dune
buggy / sand-rail thingy I'll consider one...