Do 350 engines fit in Jeeps?

No, a 350 cubic inch (5.7 liter) engine, typically found in Chevrolet and other GM vehicles, does not fit in a Jeep without significant modifications. The engine bay in most Jeeps is considerably smaller than what's needed to accommodate a 350. While some dedicated Jeep enthusiasts *do* perform this swap, it's a major undertaking requiring custom fabrication, modification to the engine mounts, firewall, and potentially other parts of the chassis. It's not a simple bolt-on swap.