How much does it cost to LS swap a 240SX?
Expect about $4,693–$4,743 in swap-specific parts for a 240SX LS swap, before the engine (S13: $4,742.89; S14: $4,692.89). Those are separate versions, not parts to add together: you buy the set for your chassis.
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The parts on our list for the 240SX (2026 retail prices; required unless marked optional):
S13:
- Sikky Stage 3 S13 LS3 Stage 3 240SX S13 LS3 package w/ wiring harness ($4,742.89)
S14:
- Sikky Stage 3 S14 LS3 Stage 3 240SX S14 LS3 package w/ wiring harness ($4,692.89)
How the totals add up (required parts only):
- S13: Stage 3 240SX S13 LS3 package w/ wiring harness, $4,742.89
- S14: Stage 3 240SX S14 LS3 package w/ wiring harness, $4,692.89
On top of this you'll need the engine (junkyard or crate) and, unless a kit above includes them, the transmission, wiring/ECU and tune, fuel system, cooling and exhaust. The whole-build budget is on the 240SX swap guide; price your own combination in the swap cost estimator and see how much an LS swap costs for typical ranges of each item.