Popular K-Series Engines for a K-Swap:

1. K20A (from Civic Type R, Integra Type R):
   • Displacement: 2.0L
   • Power: ~200-220 horsepower
   • VTEC: Yes (i-VTEC on both intake and exhaust cams)
   • High-revving engine, known for excellent power delivery and top-end performance.
2. K24A2 (from Acura TSX):
   • Displacement: 2.4L
   • Power: ~200 horsepower (with more torque compared to the K20)
   • VTEC: Yes (i-VTEC)
   • More low-end torque compared to the K20 due to the larger displacement, making it a popular choice for street and track builds.
3. K20Z3 (from 2006-2011 Civic Si):
   • Displacement: 2.0L
   • Power: ~197 horsepower
   • VTEC: Yes (i-VTEC)
   • A balanced engine that combines power with reliability.

Components Needed for a K-Swap in an EG:

1. K-Series Engine:
   • K20 or K24 engine variants (K20A, K20Z, K24A2, etc.) from newer Honda/Acura models are used.
2. Transmission:
   • A K-series transmission (like the 6-speed from the K20A or K24A2) is necessary for proper integration.
   • Optional: LSD (Limited Slip Differential) transmissions are desirable for better traction.
3. ECU:
   • The ECU is vital for running the K-series engine. A Hondata KPro ECU or similar tuning solution allows proper tuning for a custom setup.
   • KPro allows for custom maps, data logging, and managing the VTEC system.
4. Conversion Harness:
   • A conversion harness (like the ones from Rywire or Hybrid Racing) is needed to make the electrical connections from the K-series engine to the EG Civic’s chassis.
5. Motor Mounts:
   • Custom K-swap motor mounts are required, as the stock EG mounts are not compatible with the K-series engine.
   • Companies like Hasport, Innovative Mounts, and Hybrid Racing produce high-quality mounts specifically designed for K-swaps in the EG.
6. Axles:
   • K-series specific axles are required. Many kits come with custom axles designed to handle the power of the K-series in the EG chassis.
7. Shifter and Cables:
   • A K-series shifter and shift cables are needed. K-series engines use a cable shifter system, which is different from the rod linkage used on older engines.
   • Hybrid Racing and K-Tuned offer shifter box and cable kits that allow for clean and precise shifting.
8. Fuel System:
   • Fuel rail upgrades may be needed to support the increased fuel demand of the K-series engine.
   • You will need K-series compatible fuel injectors and a high-flow fuel pump.
9. Exhaust System:
   • A custom exhaust manifold and piping are needed to fit the K-series engine in the EG chassis. Many swap kits include or recommend headers that align with the K-series’ exhaust ports and the EG’s exhaust system.
10. Radiator and Cooling:
    • The stock EG radiator likely won’t be sufficient for cooling the larger, more powerful K-series engine. A K-swap radiator (side-mount or half-size) is recommended for proper cooling.
    • You’ll also need custom radiator hoses and possibly a new fan.
11. Throttle Cable:
    • A K-series throttle cable is needed to connect to the K-series throttle body.
12. Suspension and Brakes (Optional but Recommended):
    • With the increased power from the K-series engine, upgrading the suspension and brakes is recommended to handle the extra power and maintain control.
    • Consider coilovers, larger brake rotors, and calipers for better handling and stopping power.

Benefits of a K-Swap in an EG Civic:

1. Power:
   • K-series engines offer significantly more power compared to the stock D-series or even many B-series engines. A stock K20 can push 200 horsepower, and a built K24 can easily reach over 300 horsepower with modifications.
2. i-VTEC:
   • The i-VTEC system provides great versatility, offering a combination of good low-end torque and top-end power. This makes the K-series engines excellent for both daily driving and track use.
3. Reliability:
   • The K-series engines are known for their reliability. Even with modifications like turbocharging, the K-series engines can handle the extra power without sacrificing longevity.
4. Aftermarket Support:
   • The K-series platform has huge aftermarket support, meaning there are many parts available to make the swap easier and to improve performance once the engine is installed.
5. Weight Distribution:
   • The EG Civic is a lightweight chassis, and while the K-series engine is heavier than the D-series, it is still a great match for the car’s handling dynamics. With proper suspension setup, the K-swap maintains good balance and performance.