J-series V6 engine (J-swap)
into Prelude BB6 (from CL Type-S)

YA4 CL Type-S 2001-2003
→
BB6 Prelude BB6 1997-2001

Yes: the J-series V6 engine (J-swap) from the CL Type-S (2001-2003) 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 — a J-series V6 such as the J32A2 from a 2001-2003 Acura CL Type-S (YA4) fits a 1997-2001 Honda Prelude (BB6) with the Innovative Mounts 80152 J-series conversion kit and a manual J-series gearbox. Innovative lists the 04-08 TL, 03-06 Accord V6 6-speed and 2003 CL Type-S transmissions for this kit. Hybrid Racing describes the kit as locating the V6 in a stock, uncut Prelude engine bay and notes there is no automatic version. Some cars need hood risers for clearance.
ModsMods req.

Required modifications

Swap mounts: Innovative Mounts 80152 three-point conversion kit (driver, passenger and rear mounts plus three sub-brackets) for manual-transmission 97-01 Prelude; an optional front mount (80140) is available. Transmission: Innovative lists the 04-08 TL (base), 03-06 Accord 6-speed and 2003 CL Type-S manual gearboxes as compatible. Hood: Innovative notes some Prelude J-swaps need hood spacers/risers to close the hood. Also needed: J-series axles, harness/ECU integration, cooling, exhaust and A/C adaptation.

Caution

Important caveats

  • The Innovative kit is manual-transmission only; there is no automatic version.
  • Innovative notes some Prelude J-swaps need hood spacers or risers to close the hood.
  • Hybrid Racing describes the swap as one of the least documented Honda swaps, so expect to solve wiring, axles and cooling without a turnkey guide.
  • Polyurethane swap mounts remove the factory fluid damping, so expect more vibration than stock.

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Reference

LEA-MF6 specs → LEA specs → LEB-H5 specs → J32A3 specs → J32A2 specs → J32A1 specs → B18A1 specs → K24A8 specs → K24A4 specs → B18C2 specs → B18C7 specs → EA specs → ED specs → EE specs → EL specs → EN specs → ER specs → ES specs → LEA2 specs →

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Sources

2 refs
  1. 01 https://innovativemounts.com/products/97-01-prelude-conversion-mount-kit-j-series-v6-manual
  2. 02 https://www.hybrid-racing.com/products/innovative-mounts-97-01-prelude-j-series-swap-mount-kit
Submitted by FitMyBuild research Added Updated

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