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Jeep Wrangler TJ / LJ LS swap (1997–2006)
Swap kits verifiedTJ1 sourced swap recipe
LS Gen III/IV swap — moderate
1997–2006 Jeep TJ/LJ Wrangler LS swap with Novak kits in three tiers (Foundation/Essential/Complete) for 4L60E automatic or AX15 manual.
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| Part | What | Price | ||
|---|---|---|---|---|
| Swap kit | Novak TJ LS kit, 4L60E, Foundation (5 parts) KIT-LS-TJ-A-1 | $1,343 Novak Conversions, 2026-09-28 | Required | |
| Swap kit | Novak TJ LS kit, AX15 manual, Foundation (15 parts) KIT-LS-TJ-M-1 Manual alternative | $2,913 Novak Conversions, 2026-09-28 | Required | |
| Swap kit | Novak TJ LS kit, 4L60E, Essential (18 parts) KIT-LS-TJ-A-2 | $3,993 Novak Conversions, 2026-09-28 | Optional | |
| Swap kit | Novak TJ LS kit, 4L60E, Complete (23 parts) KIT-LS-TJ-A-3 | $4,723 Novak Conversions, 2026-09-28 | Optional | |
| Swap kit | Novak TJ LS kit, AX15, Essential (25 parts) KIT-LS-TJ-M-2 | $5,291 Novak Conversions, 2026-09-28 | Optional | |
| Swap kit | Novak TJ LS kit, AX15, Complete (31 parts) KIT-LS-TJ-M-3 | $8,170 Novak Conversions, 2026-09-28 | Optional |
Watch out for: Foundation tier covers engine mounts, transmission adapter and structural hardware; higher tiers add cooling, wiring, fuel etc. Commonly needed parts are listed separately from the discount kits.
Required parts we've priced so far: $4,256 (parts only, not a full budget — engine, trans, wiring and labor are extra. Try the swap cost estimator.)
Swap kit evidence
- Jeep TJ Wrangler LS Swap Kit — Complete LS Engine Conversion Package — Novak Conversions (kit-verified)
- TJ Jeep Wrangler V8 Engine Conversion Packages — Advance Adapters (kit-verified)
Questions about this swap
Every LS swap also needs
An oil pan that clears
Compare GM LS pans by sump position and depth.
Accessory drive spacing
F-body, car, truck and Corvette offsets.
Fuel system sizing
Injector and pump sizing for your power goal.
A transmission
4L60E to 8HP70 behind an LS.
Sources
- Jeep TJ Wrangler LS Swap Kit — Novak Conversions