Let's assume i swap out a daily road car suspension and install a set of shocks from an off-road vehicle.Is it gonna affect my engine?

Swapping out a daily road car suspension and installing a set of shocks from an off-road vehicle will not directly affect your engine. However, it can indirectly affect the overall performance and handling of your vehicle. Here's how:

1. Ride Quality: Off-road shocks are designed to absorb larger bumps and dips typically found off-road. On smooth roads, this could result in a less comfortable ride as the vehicle may feel bouncier.

2. Handling: Off-road shocks could potentially raise the height of your vehicle, which can affect its center of gravity and thus its handling. This could make the vehicle feel less stable during cornering.

3. Tire Wear: Changes in suspension can lead to changes in wheel alignment. If the alignment is off, it can cause uneven tire wear, which can affect handling and safety.

4. Stress on Vehicle: While the engine won’t be directly affected, other parts of the vehicle might be. Components not designed for the added stress of off-road shocks may wear out faster.

5. Fuel Efficiency: If the off-road shocks raise the vehicle's height, this could increase wind resistance, which could potentially decrease fuel efficiency.

In conclusion, while the engine won't be directly affected, swapping to off-road shocks can have a significant impact on the overall performance and handling of your vehicle. It's always best to consult with a professional before making such modifications.