How much does it cost to LS swap a OBS Chevy?
Expect at least $245 in swap-specific parts for an OBS Chevy LS swap (2WD version), before the engine. Those are separate versions, not parts to add together: you buy the set for your drivetrain. We haven't confirmed a price for the Dirty Dingo 2WD LS Slider Engine Mounts, so budget more. We have no prices yet for the 4WD version.
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The parts on our list for the C1500 / K1500 OBS (2026 retail prices; required unless marked optional):
- PSI Conversion 88–98 Adjustable 2WD C1500/C2500 Automatic Transmission Crossmember ($244.99)
- Dirty Dingo DD-2550C 2WD LS Slider Engine Mounts (price not confirmed)
- Dirty Dingo DD-2575-4 4WD LS Slider Engine Mounts (price not confirmed)
- PSI Conversion Adapter to mate a 1350 U-joint yoke to a 3-bolt differential ($54) (optional)
- PSI Conversion 99–07 Gen 3 LS/Vortec (24X) Engine Controller Kit, drive-by-cable, w/ 4L60E-75/4L80E control (standalone harness, MAF, flashed ECM, bracket) ($1,099) (optional)
How the totals add up (required parts only):
- 2WD: 88–98 Adjustable 2WD C1500/C2500 Automatic Transmission Crossmember, $244.99 (plus the Dirty Dingo 2WD LS Slider Engine Mounts: price not confirmed)
- 4WD: no priced parts yet
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 C1500 / K1500 OBS 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.