Here's what you need to consider:
* Engine Compatibility: Both cars likely used variations of the GM's Buick 3800 V6 series engines during that time. However, even within that series, there were differences in year, specific model (like the Series I, Series II, etc.), and even minor internal variations. You'll need to verify the exact engine codes (found on the engine block) for both the donor and recipient cars to ensure they're compatible in terms of block dimensions, bolt patterns, and other mechanical aspects.
* Transmission Compatibility: The transmission must also be compatible. The engine and transmission must mate properly. Simply swapping the engine might require you to swap the transmission as well. Again, checking transmission codes is essential.
* Wiring Harness and Computer: The engine's wiring harness and the computer (PCM) will likely be different. This is a major undertaking, potentially requiring significant rewiring, adaptation, or even a complete harness swap. You'll need a harness that's compatible with the recipient car's system.
* Mounting Points: While the engine family is similar, there might be minor differences in engine mount locations. This could require custom fabrication of engine mounts or significant modification to the existing ones.
* Exhaust System: The exhaust system will likely need modification or replacement.
* Cooling System: Radiator hoses, coolant lines, and potentially the radiator itself might need adjusting to work with the new engine.
* Other Components: Consider other components like the power steering pump, alternator, and accessories. Their placement and mounting points might vary, requiring adaptation.
In short: While the engines are from the same family, this is a significant mechanical project that requires a deep understanding of automotive mechanics, significant time, specialized tools, and likely some custom fabrication. It's not a simple swap. It's much more complex than simply unbolting one engine and bolting another in place. You'll likely need detailed schematics and potentially the help of a mechanic experienced in engine swaps.
