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- Jul 23, 2011
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- 47,604
You can. Preferably from a manual transmission truck
You just need the short block and heads (no accessories, electrics, or intake)
Swap out the core plugs for brass, swap the head gaskets for marine. Use a marine water pump. Swap over your accessories, add spacers where needed to get your old accessories to line up. get proper vortec intake manifold, get new exhaust manifolds (because yours will be cracked)
Because the vortec runs a balance shaft where your 1989 doesn't, I would switch the engine mounts.
Because a vortec doesn't have a means to drive a mechanical fuel pump, you need to pick up a Carter marine fuel pump, an oil pressure switch, and a relay and wire the fuel pump to the R terminal on the starter and the oil pressure switch for safety ( so the fuel pump doesn't run unless the motor is running)
You just need the short block and heads (no accessories, electrics, or intake)
Swap out the core plugs for brass, swap the head gaskets for marine. Use a marine water pump. Swap over your accessories, add spacers where needed to get your old accessories to line up. get proper vortec intake manifold, get new exhaust manifolds (because yours will be cracked)
Because the vortec runs a balance shaft where your 1989 doesn't, I would switch the engine mounts.
Because a vortec doesn't have a means to drive a mechanical fuel pump, you need to pick up a Carter marine fuel pump, an oil pressure switch, and a relay and wire the fuel pump to the R terminal on the starter and the oil pressure switch for safety ( so the fuel pump doesn't run unless the motor is running)