Looking at options for a powerpant for my Hillman Imp project car, A straight 4 engine like zx12/ gsxr1300 requires cutting of the boot floor due to height and length. So whats the largest watercooled V-twin? I also had thoughts of one of the bmw flat tourer engines. Engine will more than likely be copping a turbo down the track. RSV4 engine would be nice but rare as rocking horse shit.
ZX12 in imp