I recently bought a g20 van (I know it's not a truck but I thought you guys could help) in the process of getting it home it blew a head gasket. The motor is in unknown shape but I have a nice fresh rebuilt 350 out of a 1970 Cadillac and thought I would just build this motor for the van. Can you swap a pre TBI block into a TBI equipped vehicle? I want to keep the throttle body so I'm guessing I keep the heads and intake. Will this block work? Thanks
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Is this a Rocket 350 or an SBC 350? It's definitely doable either way. If it's an SBC, you'll need to remove the fuel pump and pushrod and install a block-off plate. You'll need the TBI distributor stabbed in the older motor, as well. As far as mounting the TBI unit goes, you can either do an intake swap, which involves grinding the four center holes on the intake to the correct angle to match the older heads, or you can find a TBI to carb intake adapter. If you do the latter, make sure you have a place to thread in your coolant temp sensor in the intake. If for some reason you can't make that work, you can probably find a water neck that has CTS threads like the Computer Command Control cars and trucks have. If this is an Olds 350, I don't know what the procedure is for the intakes, and I imagine you'd have to either get an adapter or a new trans case to make the Chevy patterned transmission work with a BOP patterned motor.
