interface engine ? thats one with a fancy computer module ?
chain broke ? .. timing chain ?
could be just a new chain and time the thing.. i mean get the chain replaced and correct.. .. needs knowledge skills and ability..,
but not a real big tool set i dont think..
what a perfect time to find an engine guy for your type ..
refresh that engine with a *specialty* cam
bore it out a little . flow the heads ..
all that jazz..
i went looking for a core to rebuild ,, got a couple hits..
here is my engine guy..
Home
he has a kit of all the good parts , interface with your machine shop and hold your hand in the process..