K20A2 engine and transmission

K20A2 engine and transmission

Engine K-Series swap (EKK1 mounts) Verified Modification Required

Compatibility Overview

Source Vehicle

RSX Type-S

Generation: DC5

Years: 2002-2004

Target Vehicle

Civic (EK)

Generation: EK

Years: 1996-2000

Installation Difficulty

Easy Basic tools
Moderate Some experience
Difficult Skilled work
Expert Professional

Reference

K20A specs → D14A1 specs → K20Z4 specs → K20Z2 specs → B18A1 specs → K20Z3 specs → K20A3 specs → D16A6 specs → K20Z1 specs → K20A2 specs → B18C2 specs → B18C7 specs → D16W4 specs → EA specs → EC specs → ED specs → EF specs → EG specs → EK specs → EL specs → EM specs → EN specs → ER specs → ES specs → ET specs → K20A1 specs → K20A4 specs → K20A6 specs → K20A7 specs → K20A9 specs → K20B specs → K20Z5 specs → PPL Cylinder Head → PRB-A00 Cylinder Head → RNE ECU → PRC ECU → PPL ECU → PPL →
The HaSport EKK1 96-00 mount kit bolts to the EK factory mount locations with no drilling (EG chassis may differ). Torque the passenger-side plate to 43 lb-ft and the driver-side plate to 33 lb-ft; HaSport lists no figure for the rear transmission plate (43 lb-ft was used). Shim any gap at the rear transmission mount with the supplied spacer or washers before tightening or the plate will bend. Required extras: plug-and-play conversion harness, a K-series ECU (Type R PRC used here), K-series header for 88-00 Civic, K20 fuel rail with a fuel pressure regulator, radiator hose adapter with fan switch and temp sender port, and a manual conversion pedal/master-cylinder set. Confirmed axle recipe with these mounts: on the driver side, an RSX Type-S inner and shaft plus a B-series outer CV joint; on the passenger side, an RSX Type-S inner, a 92+ Prelude shaft (VTEC recommended), and a B-series outer CV joint. Compressed axle lengths in the hub: passenger 22.5", driver 24". An OEM EK radiator works once the brackets are relocated. The clutch inhibitor/pedal-position sensor wiring on an ex-automatic in-cabin harness was left unresolved in the thread.
This is a fabrication-heavy transplant. An automatic EK must first be converted to a manual pedal box: swap in a manual brake pedal, install the clutch pedal and bracket, pass a clutch master cylinder through the firewall, and run a custom clutch line (both cylinder ports are 1/8", adapted via a 10mm x 1.0-to-4AN fitting to a no. 4 steel-braided line). The radiator and A/C condenser brackets must be cut free by drilling their spot welds and relocated to opposite sides, spacing the radiator brackets about 15.5 inches apart. Because EKK1 mounts move the engine forward, the factory cooling fans no longer fit; a slim electric fan mounts ahead of the cores and the core needs a fabricated cushion/support. Axles are a mixed combination that must be assembled from multiple donors. The RSX throttle cable bracket may need to be bent to open the throttle body fully. A Karcepts shifter kit avoids firewall drilling for the RSX shifter cables.

Important Caveats

  • • Leaving the passenger axle short (RSX inner and shaft only) lets the inner-joint roller bearings pop out under throttle, cornering, or suspension travel; use the 92+ Prelude shaft.
  • • Attempting to run D-series outer CV joints on RSX Type-S inners does not work; B-series outers are required.
  • • EKK1 mounts eliminate room for the factory radiator/A/C fans and the core's OEM cushioning, requiring a slim fan and fabricated core support.
  • • Do not torque the rear transmission mount without shimming the gap first.
  • • Verify emissions compliance and engineering certification for an engine transplant in your jurisdiction before road use.

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Community Verification

1
user verified this swap
By boost_me via K20A.org
Added 3 days ago

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