Tri z swap

A newer yz250 is almost a bolt in swap and a yz490/it490 share the same mounts as a tri z engine... more engine options to build a hybrid
And then everything changed in 1987 when Suzuki brought out it's next generation of 6 speed exhaust valved engines.
I think it's easier to mod the LT motor than do the swap.
Tons of hidden H.P. .....just hafta know how to find it! It's in there !
Joe