* Engine Mounts and Placement: The 1.9L and 2.2L engines likely have different mount points and overall dimensions. This would require significant modifications to the engine bay, including potentially new mounts, brackets, and even altering the firewall.
* Transmission Compatibility: The 2.2L Ecotec might use a different transmission than the 1.9L. Even if the transmissions are physically compatible, the bell housing and clutch systems may differ, requiring adjustments or replacements.
* Wiring and Electronics: The Ecotec engine's wiring harness and electronic control units (ECUs) are likely different from the 1.9L's. This will require extensive rewiring, possibly even an entirely new ECU.
* Exhaust System: The exhaust manifolds and overall exhaust system design for the Ecotec will likely be different from the 1.9L. You'll need to fabricate or find a compatible exhaust system.
* Cooling System: The cooling system components, including the radiator, hoses, and thermostat, might not be compatible between the two engines.
Possible Alternatives:
* Rebuild the 1.9L Engine: It might be a more cost-effective option to rebuild the existing 1.9L engine, especially if it's simply in need of repairs.
* Find a Used 1.9L: You might find a used 1.9L engine in better condition than yours, which would be a simpler swap.
* Consult a Professional: Talk to a reputable mechanic or shop specializing in Saturn vehicles. They can provide more accurate information on the feasibility and complexity of this swap.
In Conclusion:
Swapping a 2.2L Ecotec into a 1995 Saturn with a 1.9L is likely a complex and challenging undertaking. It will involve significant modifications and potentially a lot of custom work. Consider the alternatives and consult with a professional before attempting this swap.
