Feasible Swaps (with varying degrees of difficulty):
* Chevrolet 2.8L V6 (various generations): This is the most common swap, as it's the factory option for some 1988 Fieros and the mounting points are already present. Different generations of this V6 engine exist, and compatibility might require some adjustments.
* Chevrolet 3.1L V6 (from early 90s Camaros/Firebirds): A relatively easy swap, similar in size to the 2.8L. Again, some modifications are usually necessary.
* Chevrolet 3.4L V6 (from mid-90s Camaros/Firebirds): Larger than the 2.8/3.1, making this a more challenging swap requiring more fabrication.
* Honda engines (various): Popular choices due to their compact size and availability. However, this requires significant custom fabrication, including custom mounts and potentially modifications to the transmission.
* Mazda Miata engines (1.6L or 1.8L): Another popular choice due to their compact size and relative ease of integration. Custom fabrication is still involved.
Engines to Avoid (Unless you're an experienced fabricator):
* Anything significantly larger than a 3.8L V6: Space is extremely limited in the Fiero's engine bay. Larger engines will likely require extensive cutting, welding, and custom fabrication. This is a project for only the most experienced mechanics.
* V8 engines: Practically impossible without extensive chassis modification.
Important Considerations:
* Transmission: The transmission choice must be compatible with the chosen engine. You might need a new transmission, adapter plate, or custom driveshaft.
* Wiring Harness: You'll likely need to adapt or replace the existing wiring harness to accommodate the new engine.
* Cooling System: Engine cooling is crucial, especially in a small engine bay like the Fiero's. A properly sized radiator and cooling system are essential.
* Exhaust System: A custom exhaust system will likely be necessary.
Before undertaking any engine swap, thoroughly research the specific engine and transmission you're considering. Consult forums and online communities dedicated to Fiero modifications for advice and guidance. This is a complex project that requires mechanical skills and experience. Underestimating the work involved is a common mistake.
