K24A2 engine and 6-speed transmission
into Prelude BB6 (from TSX)

CL9 TSX 2004-2008
→
BB6 Prelude BB6 1997-2001

Yes: the K24A2 engine and 6-speed transmission from the TSX (2004-2008) fits the Prelude BB6 (1997-2001) — difficult difficulty, modifications required.

Verdict
Fits.
Verified entry · modifications required
Verified ✓
Difficulty
Difficult
Mods
Required
Category
Engine

Installation notes

Yes — the K24A2 engine and 6-speed transmission from a 2004-2008 TSX (CL9) fits a 1997-2001 Prelude (BB6) with the Hasport BB6K4 mount kit, engine bay and frame-rail bracket modifications, and K-swap wiring and axles. Hasport describes the swap as bolt-in after the engine bay modifications. Hybrid Racing lists the three transmission options as K20A2/A3/Z1/Z3, K24A2/A4/A8 and K24Z2/Z3/Z7 style gearboxes. Hasport says the kit works with both auto and manual Prelude chassis.
ModsMods req.

Required modifications

Engine mounts: Hasport BB6K. BB6K4 is the version for the 03-07 Accord and 04-08 TSX manual transmission (BB6K2: RSX/02-11 Civic Si; BB6K5: 08-13 Accord, 09-14 TSX, 12-15 Civic Si). Hasport says the swap needs some engine bay modifications and modification of the stock transmission bracket on the frame rail. Also needed: wiring conversion, ECU, axles, shifter, cooling, fuel and exhaust; Hasport lists wiring conversions, ECU modifications and axles as related products.

Caution

Important caveats

  • Hasport says the stock transmission bracket on the frame rail must be modified.
  • Mount kits are transmission-specific; order BB6K2, BB6K4 or BB6K5 to match the gearbox.
  • Both sources describe the same Hasport product; wiring and ECU details for the Prelude chassis need their own research.
  • The swap replaces the whole H-series drivetrain, including the ATTS differential on cars that have it.

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Reference

K20A specs → K24A specs → K20Z4 specs → LEB-H5 specs → K24A3 specs → K20Z2 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 → B18C2 specs → B18C7 specs → EA specs → ED specs → EE specs → EL specs → EN specs → ER specs → ES specs → ET 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 → PPL Cylinder Head → R40 Cylinder Head → PRB-A00 Cylinder Head →

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Sources

2 refs
  1. 01 https://hasportperformance.com/products/bb6k/
  2. 02 https://www.hybrid-racing.com/products/hasport-performance-97-01-honda-prelude-k-swap-mounts
Submitted by FitMyBuild research Added Updated

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