Is 2000 Honda Prelude h22a interchangeable with h23a?

The H22A and H23A engines are both part of Honda's H-series, but they have different specifications and characteristics. While they share some components, such as the block and certain accessories, they are not fully interchangeable due to differences in performance specs and tuning. Modifications may be necessary for a successful swap, and it's essential to consider factors like wiring harness compatibility and ECU requirements. Always consult with a knowledgeable mechanic or Honda specialist before attempting an engine swap.