However, if you're thinking of a different generation of 5.7L V8 (like an LS1, LS6, LSx, or even a different small-block Chevy), it's more complicated. While the engine bay might have enough space, you'll likely need to:
* Modify or replace the engine mounts: Different engines have different mounting points.
* Address potential clearance issues: The accessories (alternator, power steering pump, etc.) might interfere with other components.
* Modify or replace the exhaust system: The exhaust routing will need to be adapted.
* Wiring harness modifications: You'll likely need to adapt or create a new wiring harness to accommodate the different engine's computer and sensors.
* Transmission compatibility: Ensure your chosen transmission is compatible with both the engine and the Firebird's existing drivetrain.
In short, it's *possible* to fit various 5.7L V8s, but it's rarely a simple bolt-in affair. It often requires mechanical expertise and potentially significant modifications. A direct swap with another LT1 is the easiest route; anything else will be a more involved project.
