I had a 88 astro and I put a 350 chevy in it. All accesories from the 4.3 bolted up to the front of the 350. The throttle body is the same as the 4.3 also. Fuel injected, cruise, air It worked just the way GM should have sold it. Put 100k on that combo and surprised alot of cars at the stop lights. sleeper grocery getter.