Being thinking of this for a while of a bike engine top end
with a car crankcase to suit common RWD gearboxes and finally
the mob that has done the hayabusa v8 has done the H2.
http://www.muzzys.com/ZX14/ZX14_Prostock/index.html
http://www.h1v8.com/H2.html
http://www.h1v8.com/H2.html
http://www.h1v8.com/h1h2pricing.html

However couldnt such a crankcase cost less than
8500USD !!!! just your opinion TOPGEAR or other
3d cad modeler dude.

My idea and there could be better would be a
3 piece block

lower case - unitary main caps and sump with flat
alloy plate cover plate bolted at the bottom.
mid case - holding the top part of the mains and completing the crankcase
(both units also with bolt pattern to suit W series box (still available
for hilux and hiace with interchangeability) or removable rear plate
to suit all sorts gearboxes)

Cylinder casing - the biggest piece of alloy billet for a bolt up pattern
to suit and aftermarket head

or option 2 - just dump this part and use the combined
crankcase and use other bike cylinder cases and heads.

Cheapest would be opt 3
Just the top part of the crankcase to suit bike crank,
cylinder casing and head with bolt up pattern on rear
to suit W series toyota box or t5 and custom unitary
Mains ladder brace and custom tin sump.
(gbox bolt up pattern will need some adaptors to suit
the bottom or top part of the engine (or both)

Opt3 would need the less amount of billet pieces
and should provide a cheaper option for those
wanting a good performer but not ruin your pockets.

Attach file:

---

  zx14prostock.jpg (41.97 KB)


  base1.JPG (32.59 KB)


  block base.JPG (36.96 KB)