* The specific 350: Different 350s have different accessory placements (alternator, power steering pump, etc.) and overall dimensions. Some aftermarket modifications might make it larger.
* Modifications: You might need to modify the engine bay, firewall, or even the chassis to accommodate the engine, especially if using aftermarket parts or a larger-than-stock 350.
* Transmission: The transmission used will affect the fit. A larger transmission might require further modifications.
* Headers: Choosing the right headers is crucial. Long-tube headers often require more clearance work than shorty headers.
In short, while a stock 350 is *likely* to fit, it's not guaranteed without some potentially necessary modifications. If it's a direct swap from a similar-year Firebird, it's more likely to be straightforward. However, if it's a significantly modified 350 or you're using different accessories or transmission, you should expect to do some fabrication and fitting work.
