Stock 5.7L chevy out of a 89 suburban, TBI injection. Ordered motor mounts and exhaust manifolds for V8 swap.
Bolted right on to the automatic transmission. My van is a 1989 cargo.
Same radiator but went to electric fan with a controller. No overheating. For the exhaust just take it to a trusty shop, one that won't bitch about doing custom work. On the exhaust I think the hardest was to do the "Y" where one side of the motor exhaust connects to the other. And for this just buy a prefabed part.
The way I see it, if I could do the swap in my driveway, anybody with a little mechanical skill can do it. In fact, the rebuild of the motor is what caused me problems. Once the motor was done it was smooth. My next swap will be for a newer motor that is a turn key package.
The only problem I have had twice is burning spark plug wires that are running to close to the exhaust manifold. The third time I rerauted them and that did it.
It's an easy swap, just follow directions and don't cut corners.