Honda / Acura K20a K24a Engine Forum banner

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Im looking to buy k20a engine and they told me 02 to 04 is different to 05 to 06. question is what is the difference in betwen them two?
 

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In Europe for a K20a2 engine from a EP3 Civic Type R, the later facelift model has a lighter flywheel. Some of the synchro rings in the gearbox have slightly different shape, but this is only relevant upon rebuilding or modifying the gearbox.
I do not know the differences for japanese market only type K20a engines.
 

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Not sure about jdm engines either but Usdm k-series engines went DBW throttle bodies and some of the VSS sensors are also different.
 

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AFAIK DBW came with the transition to the K20Z1 engine. This was in the US fitted to the 2005–2006 Acura RSX Type-S. Before that the RSX had a K20a2 fitted with a throttle cable.
 
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