Here's a breakdown of the limiting factors:
* Engine Bay Space: The '92 Camaro's engine bay is relatively roomy compared to some cars, but it's not infinite. Larger engines will require significant modifications, possibly including:
* Firewall modifications: Cutting and welding the firewall to accommodate a wider engine.
* Suspension modifications: Changes to the front suspension or subframe to clear the engine's components.
* Custom Headers and Exhaust: These are almost certainly required.
* Body modifications: In extreme cases, you might need to modify the body itself.
* Transmission: The stock transmission likely won't handle the power of a significantly larger engine. You'll probably need a stronger transmission and drivetrain.
* Cost: Major engine swaps are expensive. You'll need to factor in the cost of the engine itself, the necessary modifications, installation labor, and any required upgrades to the supporting components.
* Practicality: A massive engine might make the car difficult to handle and drive, negating any performance benefits.
Realistic Options:
While you *could* theoretically fit a very large engine with enough fabrication, it's more practical to consider engines that fit reasonably well and offer significant performance gains without excessive modifications. Popular choices for swaps in third-gen Camaros (like your '92 RS) include LS-series engines (GM's small-block V8s) which are fairly common and offer good performance. Even an LS engine might need some minor modifications for a perfect fit.
Unrealistic Options:
Trying to shoehorn in a big-block Chevy (454, 502, etc.) would be a huge undertaking and might require extensive modifications that make the project impractical or ruin the car's integrity.
In short: While there's no upper limit on size with enough fabrication, a realistically practical swap would likely fall within the range of LS-series engines or similar-sized high-performance engines. Anything much larger quickly becomes a significant and expensive custom project. Before you start, research specific engine swaps and modifications done on third-gen Camaros to get a better idea of the feasibility and complexities involved.
