K24A2 engine (longitudinal, with S2000 transmission)
into S2000 AP2 (from TSX)

CL9 TSX 2004-2008
→
AP2 S2000 AP2 2004-2009

Yes: the K24A2 engine (longitudinal, with S2000 transmission) from the TSX (2004-2008) fits the S2000 AP2 (2004-2009) — difficult difficulty, modifications required.

Also fits S2000 AP1 (1st gen) →
Verdict
Fits.
Verified entry · modifications required
Verified ✓
Difficulty
Difficult
Mods
Required
Category
Engine

Installation notes

Yes — a K24A2 engine from a 2004-2008 TSX (CL9) fits a 2000-2009 S2000 (AP1/AP2) when mounted longitudinally with a K-swap mount kit, a K-series-to-S2000 clutch and flywheel, and a RWD intake manifold, keeping the S2000 6-speed. Hasport says its APK2 kit keeps the cylinder head in the same place for K20 or K24 so headers, intakes and turbo kits fit either block. Hybrid Racing describes K-swapped S2000s as running a K20 or K24 through the F-series transmission. This swap is chosen mainly for the K24's extra displacement and torque compared with the F20C/F22C.
ModsMods req.

Required modifications

Engine mounts: Hasport APK2 (dual height; a K20 on the high setting keeps stock crank alignment, a K24 on the low setting keeps the head in the same place) or Innovative 90757 (K24 kit with front and passenger-side adapter plates); Innovative also sells a K20 kit and an OEM-position adapter kit. Transmission: the car keeps the S2000 F-series 6-speed; the clutch and flywheel must suit a K-series crank and the S2000 gearbox (Clutch Masters sells a K-swap S2000 kit, CLM-08K2F-HD00-A). Intake: a rear-wheel-drive K-series intake manifold is needed because the engine sits longitudinally. Also wiring/ECU, cooling, exhaust and accessory drive.

Caution

Important caveats

  • The Innovative K24 kit product text says "2000-2001 Honda S2000" while its title says 00-09; confirm AP2 fitment with the vendor.
  • The S2000 transmission is retained, so the clutch and flywheel must be K-crank-to-S2000-gearbox parts, not stock S2000 parts.
  • A rear-wheel-drive intake manifold is needed; Hybrid Racing pairs the Hasport kit with a KPower Industries manifold.
  • Hasport also lists rear differential mounts and ECU upgrades as related parts for this swap.

No guide yet — write one or browse all guides.

Reference

F20C specs → K20A specs → K24A specs → K20Z4 specs → LEB-H5 specs → K24A3 specs → K20Z2 specs → B18A1 specs → F22C1 specs → K24A8 specs → K24A4 specs → K24W1 specs → K20Z3 specs → K24Z7 specs → K24Z3 specs → K24Z2 specs → K24A2 specs → K24A1 specs → K20A3 specs → K20Z1 specs → K20A2 specs → EA specs → ED specs → EE specs → EL specs → EM specs → EN specs → EP specs → ER specs → ES specs → K20A1 specs → K20A4 specs → K20A6 specs → K20A7 specs → K20A9 specs → K20B specs → K20Z5 specs → K24V5 specs → K24V7 specs → K24W specs → K24W4 specs → K24W7 specs → K24W9 specs → K24Y1 specs → K24Y2 specs → K24Z1 specs → K24Z4 specs → K24Z5 specs → K24Z6 specs → S20 Transmission → PCX Cylinder Head → PPL Cylinder Head → R40 Cylinder Head → PK2 Cylinder Head → S20 → PK2 →

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Sources

4 refs
  1. 01 https://hasportperformance.com/products/apk2-k-series-swap-mounts-for-2000-2009-s2000/
  2. 02 https://innovativemounts.com/products/00-09-s2000-conversion-mount-kit-k24-manual-adapter-plate
  3. 03 https://www.hybrid-racing.com/products/clutch-masters-fx100-clutch-steel-flywheel-s2000
  4. 04 https://www.hybrid-racing.com/products/hasport-engine-mount-kit-for-k-series-swap-mounts-for-2000-2009-s2000
Submitted by FitMyBuild research Added Updated

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