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Budget EF K-Swap, Part 1

88-91 Civic CRX Budget K Swap

Time for another budget K-Swap. This time we’re swapping a K20 into an EF Chassis. The Budget EG K-swap was built for about $3200, but this one is different. The 88-91 Civic and CRX chassis requires a few more parts because of things like cable operated  clutch and mechanical VSS. The EF is also smaller, making it a little tougher fit.

Joining me is EF Civic and DA Integra expert Robert Diaz. He owns Hush Performance, which makes cool parts for this car. On this swap we will be using Hush’s EF cable to hydro conversion to convert EF’s clutch operation to work with the K-series transmission.

In the this episode we make a parts list and give a general overview of the swap. The list is broken into two parts; the first section is for parts coming from other vehicles, and the second section contains parts manufactured or fabricated to perform the swap.

The list of parts for our EF K-swap

  • K-series engine (K24A1 from CRV)
  • Base RSX 5 speed transmission
  • 05 Honda Accord ECU (for KTuner modification)
  • K-series wiring harness (CRV harness)
  • RSX base intermediate shaft
  • K-series alternator
  • RSX Flywheel and clutch
  • RSX shift cables
  • 90-93 Accord Shift mechanism
  • K-series clutch slave cylinder
  • RSX base axles
  • K-series starter
  • Intake air sensor
  • Air fuel ratio sensor (05 Accord)
  • Serpentine belt.
  • Knock sensor connector
  • Alternator connector
  • Positive battery cable
  • Heater hose
  • Radiator hose
  • Throttle cable (CRV)
  • Mechanical VSS (CRX)


In a future VA article we will go over the individual parts with a breakdown including optional choices for each part. We’ll also discuss the parts as we assemble the car in following video episodes.

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Brian Gillespie
Technical Editor at VTEC Academy
Brian Gillespie fell in love with the Honda brand in 1974 when he owned and raced a CR 125 Honda Elsinore. Many Hondas later he started Hasport Performance with his brother Keith. The last 17 years have been spent developing all sorts of engine mount kits, paving the way for nearly every Honda engine swap that's since taken place.