Engines that generally fit with *relative* ease (still require work):
* Small-block Chevrolets (SBCs): 350s, 383 strokers, and even some 400 small-blocks will generally fit with minimal chassis modifications. These are popular swaps because parts are readily available. However, you might need to address things like headers, motor mounts, and potentially transmission compatibility.
* Some LS engines (Gen III and IV): These are becoming increasingly popular swaps. They're more modern, efficient, and powerful. However, they require more extensive modifications, especially regarding wiring, mounts, and potentially the transmission and computer systems. Many aftermarket kits exist to make this easier.
Engines that require more significant modifications:
* Big-block Chevrolets (BBCs): These are considerably larger and require substantial modifications to the engine bay, potentially including firewall modifications, custom headers, and specialized motor mounts.
* Other makes' engines (Ford, Mopar, etc.): These are much more involved projects requiring significant fabrication and custom work.
Trouble Level (General):
The difficulty of swapping engines depends heavily on your mechanical skills and access to tools and resources. Here's a rough scale:
* 350 SBC Swap: Moderate to Difficult. Many resources and parts are readily available, but you'll need mechanical aptitude and some fabrication skills. Expect a significant amount of work even with readily available swap kits.
* LS Swap: Difficult to Very Difficult. This often requires more electrical knowledge and specialized tools. Many kits are available to ease the process, but it's still a major undertaking.
* BBC Swap or other make swaps: Very Difficult. This generally requires significant fabrication skills, welding experience, and a good understanding of engine systems. Expect a considerable time investment.
Before you start:
* Research: Thoroughly research the specific engine you're considering. Look for build threads and forums dedicated to Camaro swaps. This will give you a better understanding of the challenges involved.
* Budget: Engine swaps are expensive. Factor in the cost of the engine itself, parts (headers, mounts, wiring harness, potentially transmission and rear end), labor (if you don't do it yourself), and any necessary fabrication work.
* Transmission: Consider the transmission compatibility. Your current transmission may not be suitable for a significantly more powerful engine.
In short, while a larger engine *can* fit, it's not a simple bolt-in job. Start with thorough research and realistic expectations about the time and cost involved. The 350 SBC is often recommended as a relatively manageable upgrade for someone with some mechanical experience. An LS swap offers modern performance but significantly increases the complexity.
