yeah h22 i believe would also be the best if your looking for power..or if you wanted to swap a f22b or a f22a motor would work also....if the chasis are the same as the 2 newer gens than the 89.

swapping h22's into a 90-93 is easy as cake as just as the 94-97's...been done plenty of times..i know its been done in a 3rd gen, but it takes a lot of money, time, and patients.

because the CB and CD chassis are simmilar and the CA5 is completly diffrent.