Quote Originally Posted by speedminded
The conversion/procedure going from a D-series CRX to a K isn't really much differant than from a D-series to a B-series, either way you'll still need all the parts for the conversion: mounts, harness, axles, header, exhaust, etc. I don't have a build list for what exactly is needed but Mike or someone should have one readily available.

The K20a2 is out of the RSX Type-S with the 6-speed transmission and the K20a3 is from the base RSX and '02+ Civic SI.
Your K20 options are generally as follows:
K20A - JDM EP3/DC5 CTR/ITR
K20A2 - 02-04 RSX-S
K20a3 - EP3/DC5 Si/RSX Base
K20Z1- 05-06 RSX-S
K20Z3 - 06+ FG Si.

the Z1 and the Z3 are fly by wire, so you have to use a different TB with them, which requires an adapter.