Honda K20 vs K24: What's the Difference?

The Honda K20 and the Honda K24 differ in displacement, bore × stroke, compression ratio, factory rating. The table puts the factory specs side by side; each engine's own page has the full specs.

Specs side by side

Honda K20Honda K24
EngineHonda K20 (2.0L)Honda K24 (2.4L)
Displacement121.9 ci (2.00 L)143.7 ci (2.35 L)
Bore × stroke3.386" × 3.386"3.425" × 3.898"
Cylinders44
Compression ratio9.8:1–13:19.6:1–11.1:1
Factory rating150 hp–320 hp156 hp–205 hp
Blockaluminumaluminum
Headsaluminumaluminum
Rod length——
Deck height8.346"9.114"
Weight (approx.)——
Fuelgasgas
Model years2002–20262002–2019

Where versions of an engine differ, the table shows the range across them. Ratings are the makers' published figures.

Which cars got each engine

Honda K20Years
Acura RSX2002–2006
Honda Civic2002–2026
Acura Integra2024–2026
Honda HR-V2023–2026
Honda Accord2018–2022
Honda K24Years
Acura TSX2004–2014
Honda CR-V2002–2019
Honda Accord2003–2017
Honda Civic2012–2015
Honda Element2003–2011

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