Observed arrival · 2026-09-03
KSwaps, a Field Guide to Honda K-Series Swaps
A practical reference for planning Honda K-series engine swaps, with engine and gearbox data, fitment guidance, checklists, calculators, and build paths.
Field notes
KSwaps structures swap planning around the dependencies that create rework: engine code, gearbox, chassis, electronics, fuel, and cooling. Its comparison area distinguishes gear-by-gear behavior and final-drive effects, while the checklist records progress locally in the browser. The page repeatedly limits its references by exact code, market, and model year, including a warning to verify stamped transmission codes and factory service documentation before ordering parts. A visible K20Z3 engine-bay example is credited to Wikimedia Commons under CC BY-SA 4.0.
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