Home › Swap guides › Supra MK4 / MK3
Supra MK4 / MK3 LS swap
A typical Supra MK4 / MK3 LS swap runs about $11,000–$16,000 in parts ($7,000 on a budget), and the big decision is where the engine sits: the CX MK3 mounts fit 1986-89 cars with the round-mount subframe, not the square-plate one.
Last updated
Toyota · 1986–2002Swap kits verifiedA70 / A801 parts list
LS Gen III/IV swap — moderate
Toyota Supra LS swap: Sikky LSx swap kit.
Parts and steps for the Supra MK4 / MK3
Every part option we know for each stage of the swap. Open a step, start with our pick, and check all the options. Plan your exact combination →
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Before you buy
Parts we know for this vehicle: 33 options across 10 of 10 categories.
What it costs: budget build about $7,000; typical build $11,000–$16,000 (parts, not labor, prices as of 2026-10-01).
Sikky kit builder (mounts, headers, pan, trans mount, driveshaft), standalone harness, mid-sump pan, fresh cooling/fuel system, AC lines and compressor adapter
Required parts priced so far: $593.98 (required parts on this parts list that have a listed price; parts only: engine, transmission, wiring and labor are extra. Build the full budget →)
Tags: Verified on our parts list or confirmed on the maker's page for this vehicle · Listed the vendor's catalog names this vehicle · Community from owners' builds and small sellers.
Beta We're still fixing fitment as owners report it. Double-check parts before you buy. See what's new →
Our sourced parts list is for the MK4 / A80 (1993–2002) Supra MK4 / MK3. MK3 / A70 (1986–1992) use different parts; parts made for one generation say so.
2Mounts, crossmember & oil panSet where the engine sits, then pick a pan that clears · 4 parts
Mounts & swap kits
4 options · $593.98Why you need it: The mounts set where the engine sits, and that decides oil pan, header and driveline fit. The CX MK3 mounts fit 1986-89 cars with the round-mount subframe, not the square-plate one. Sikky's MK4 kit lists the T56, Magnum, CD009 and TR6060. More: engine mounts and swap kits.
Our pick and alternativespick + 2 of 4
Compare 4 mount & swap kit options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Sikky Sikky Spec Your Own Supra MKIV LS kit (engine mounts; base price) Verified Our pick · for MK4 only | Supra LSx kit | $593.98 2026-09-28 | Transmission-specific mount option (T56/T56 Magnum/CD009 CM33, TR6060 CM34) +$213.98 for MK4 only | Direct from Sikky | |
| Sikky Manufacturing Toyota Supra LSX swap kit (billet engine mounts + trans mount, kit builder) Listed | — | MK4 (JZA80) Supra LS swap; trans options T56 / T56 Magnum / CD009 / TR6060 for MK4 only | Check price & fitment | In production | |
| CXRacing LS1/LSx engine + T56 trans mounts kit, MK3 Supra Listed | ESK-HD-LS1-MID-Y-SUPRA3 | 1986-1989 MK3 Supra with the round-engine-mount subframe Doesn't fit: MK3 subframes with the square engine-mount plate for MK3 only | Check price & fitment | In production | |
| DIY / one-off fabrication (Supra builds) Custom-fabricated LS motor mounts Listed | — | MK4 Supra where off-the-shelf kits do not match the builder's trans/placement choice for MK4 only | LSXMag feature: Matt Schnicke LS-swapped Supra drag build | DIY |
Oil pan
2 options · $643.98Why you need it: The pan has to clear the crossmember, the ground and, on a 4x4, the front differential. MK4 kits use the Sikky mid-sump pan with the F-body pickup 12558251; MK3 cars on CX mounts run a stock F-body rear-sump pan, which hangs lower. More: oil pan guide.
Our pick and alternatives2 options
Compare 2 oil pan options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Sikky Manufacturing LSx swap mid-sump oil pan kit Listed Our pick · for MK4 only | SM-OP005T / OP005T | +$643.98 (kit builder add-on) 2026-10-01 | MK4 Supra and Lexus SC300 when using the Sikky mount kit; LHD or RHD for MK4 only | Direct from Sikky Manufacturing | In production |
| GM (OEM) F-body (Camaro) rear-sump oil pan Listed | — | MK3 Supra LS swaps on the CXRacing mount kit for MK3 only | Direct from GM (OEM) | Used only |
Steering
1 option so farWhy you need it: The engine and headers have to clear the steering shaft and box, and some swaps need a new shaft or box to make room. The Supra rack needs the right GM pump pressure, and swap lines mate the GM pump to it. More: steering shaft and box clearance.
Options1 option
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
Compare 1 steering option
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Sikky Manufacturing LS power steering lines (Supra application) Community | — | Toyota Supra (listed chassis); mates GM pump to Supra rack Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Direct from Sikky Manufacturing | In production |
Only 1 option found so far for the Supra MK4 / MK3. Know another? Tell us →
Brakes & booster
2 optionsWhy you need it: A big cam can leave too little vacuum for the booster, and some swaps leave no room for one. The Supra TT booster needs the LS vacuum port; a big cam's low idle vacuum shows up as a hard pedal, fixed with an electric vacuum pump. More: vacuum booster or hydroboost?
Options2 options
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
Compare 2 brake & booster options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Toyota (OEM) Stock Supra Twin Turbo brakes (retained) Listed | — | MK4 Supra LS swaps - TT brakes handle the swap's power in the documented 8.78s drag car for MK4 only Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | LSXMag feature: 1994 Supra LS turbo drag car | Used only | |
| DIY / aftermarket Electric vacuum pump for brake booster Community | — | LS swaps with big cams and low idle vacuum Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Direct from DIY / aftermarket | In production |
Ready for the next step when you've picked where the engine sits and an oil pan that clears it.
Next: transmission & driveline →3Transmission & drivelinePick the transmission and how it shifts, then the parts behind it · 3 parts
Transmission adapter & clutch
3 options · $549–$600Why you need it: An LS needs its own bellhousing or adapter and the right flexplate or flywheel, and an electronic transmission needs a computer to shift it. The Supra's V160 6-speed has no LS adapter, so most builds sell it and run a T56; a CD009 bolts up with an adapter plate. More: transmission guide.
Options3 options
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
Compare 3 transmission adapter & clutch options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| GM (OEM) F-body T56 6-speed (native LS bellhousing) Listed | — | MK4 Supra LS swaps - Sikky mounts/trans mounts are designed around the T56 (options: T56, T56 Magnum, CD009, TR6060) for MK4 only Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Direct from GM (OEM) | Used only | |
| Collins Performance Technologies Lexus SC300/SC400 / Supra LSX to CD009 full swap kit Listed | — | $549.00 2026-10-01 | Lexus SC300/SC400 and Toyota Supra LSX engines to Nissan 350Z/G35 CD009/CD00A 6-speed Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Direct from Collins Performance Technologies | In production |
| Collins Performance Technologies LSX to CD009/CD00A adapter plate Listed | — | $600.00 2026-10-01 | LS1/LS2/LS3/LQ9/LS7/LQ4/LS9/L33/LR4/LM7/L59/LM4/L76 to Nissan CD001-CD009 / JK40 6-speed Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Check price & fitment | In production |
Crossmember
2 options · $213.98Why you need it: The transmission mount usually moves, and the crossmember sets the driveline angle. MK4 and MK3 take different trans mounts: the Sikky MK4 bracket (T56, Magnum, CD009, TR6060) or the CX T56 mount on 1986-89 MK3s. More: getting driveline angles right.
Our pick and alternatives2 options
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
Compare 2 crossmember options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Sikky Manufacturing LS transmission mount (T56/CD009/TR6060) Listed Our pick | TM01 | +$213.98 (kit builder add-on) 2026-10-01 | Supra LS swap; urethane-bushed CNC-bent steel bracket; trans options T56 / T56 Magnum / CD009 / TR6060 | Check price & fitment | In production |
| CXRacing T56 transmission mount (MK3 Supra kit) Listed | — | 1986-1989 MK3 Supra LS swap with T56 for MK3 only Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Direct from CXRacing | In production |
Driveshaft
2 options · $849.99Why you need it: A different transmission is almost always a different length, so plan on a custom-length driveshaft. Supra one-piece shafts come for the T56 and Magnum, with 3.5 in chromoly and 4 in options for big power. More: driveshaft length and angles.
Our pick and alternatives2 options
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
Compare 2 driveshaft options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Sikky Manufacturing One-piece driveshaft Listed Our pick | SKTOSH1-A (aluminum) | +$849.99 (aluminum); 4" HD +$899.99; 3.5" chromoly +$799.99 2026-10-01 | Supra LS swap; T56 / T56 Magnum options in kit builder | Direct from Sikky Manufacturing | In production |
| Shaftmasters One-piece aluminum Supra driveshaft Community | TOYSUPMK3T86-88A | MK3 (1986-1992) one-piece aluminum driveshafts. Opened item TOYSUPMK3T86-88A fits 1986-88 turbo automatic. The catalog titles a 1986-1992 non-turbo row as well. Doesn't fit: MK4 is not on the catalog page. for MK3 only Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Direct from Shaftmasters | In production |
Ready for the next step when you've picked the transmission and how it's controlled, and know the crossmember, driveshaft and flexplate or bellhousing it needs.
Next: accessories & cooling →4Accessories & coolingOne accessory spacing, then cooling and A/C · 3 parts
Accessory drive
2 options · $250Why you need it: The balancer, water pump, brackets and pulleys must all be one spacing, or the belt won't line up. A tall truck alternator bracket can hit the Supra hood, so the usual drive is a narrow alternator with a Sanden 508 bracket. More: accessory drive guide.
Options2 options
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
Compare 2 accessory drive options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Dirty Dingo Motorsports Billet narrow alternator-only + Sanden 508 A/C bracket kit Community | DD-LS-ALT-N-AC-S-TR | $424.99 2026-10-01 | 1997-2013 LS engines in tight bays like the Supra Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Direct from Dirty Dingo Motorsports | In production |
| ICT Billet LS truck driver-side alternator / power steering bracket kit Listed | 551519X-3 | $250.00 2026-10-01 | 1999-2014 truck/SUV LS engines keeping truck accessories Doesn't fit: Corvette, CTS-V, or 2010-2015 Camaro bolt pattern alternators Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Buy | In production |
Cooling
3 options · $390.66Why you need it: LS water pumps put both hoses on the passenger side and the engine needs a steam line, so the radiator needs LS-style ports or an adapter. 1993-98 MK4 and 1986-92 MK3 Supras take different direct-fit radiators; pair either with a fan shroud for track use. More: radiator, fans and steam line.
Our pick and alternatives3 options
Compare 3 cooling options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Mishimoto Performance aluminum radiator, MK4 Supra Listed Our pick · for MK4 only | MMRAD-SUP-93T | 1993-1998 Supra (V160 and W58 chassis), direct OEM fit for MK4 only | Buy | In production | |
| Mishimoto Performance aluminum radiator, MK3 Supra Listed | MMRAD-SUP-86 | 1986-1992 MK3 Supra (R154, W55, W58 chassis) for MK3 only | Buy | In production | |
| CSF 93-98 Toyota MK4 Supra radiator (black finish) Listed | 2882B | $390.66 2026-10-01 | 1993-1998 Toyota Supra (manual transmission) for MK4 only | Buy | In production |
A/C
2 optionsWhy you need it: Where the compressor mounts (high or low) can decide frame, fender and header clearance, so pick it before you buy brackets. The Supra bay is tight: a CTS-V compressor on an adapter block with Supra-specific lines is the usual A/C route. More: accessory drive guide.
Options2 options
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
Compare 2 A/C options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Sikky Manufacturing LS CTS-V AC compressor adapter block Listed | — | Any LS engine running a CTS-V AC compressor in a tight swap bay Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Check price & fitment | In production | |
| Sikky Manufacturing A/C lines and kits (Supra application) Community | — | Toyota Supra listed among supported chassis for Sikky A/C lines and kits Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Direct from Sikky Manufacturing | In production |
More: Accessory drive guide · Cooling guide
Ready for the next step when you've picked one accessory spacing, with the balancer, water pump and brackets to match.
Next: exhaust →5ExhaustHeaders or manifolds that clear where the engine sits · 1 part
Headers & exhaust
3 options · $739–$1,063.99Why you need it: Headers are shaped around one chassis's frame, steering and floor, so they have to be made for your vehicle and engine position. Left-hand drive only on the CX MK3 set; turbo builds run a hot-side manifold instead. More: headers and exhaust by chassis.
Our pick and alternatives3 options
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
Compare 3 header & exhaust options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Sikky Manufacturing Pro Series stainless LS swap headers Listed Our pick | HDR012SS | +$1,063.99 (kit builder add-on) 2026-10-01 | Supra LS swap (LHD) | Direct from Sikky Manufacturing | In production |
| Huron Speed Turbo hot-side exhaust manifold Listed | — | Turbocharged LS-swapped MK4 Supra drag builds Doesn't fit: Not for naturally-aspirated builds for MK4 only Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | LSXMag feature: 1994 Supra LS turbo drag car (8.78 @ 154) | In production | |
| CXRacing LS1/LSx long-tube headers, MK3 Supra Listed | HD-LS-SUPRA3 | $739.00 2026-10-01 | 1986-1992 MK3 Supra LS swap, left-hand drive Doesn't fit: Right-hand-drive chassis (steering shaft conflict); off-road use only for MK3 only | Check price & fitment | In production |
More: Headers & exhaust guide
Ready for the next step when you've picked headers or manifolds that clear where your mounts put the engine.
Next: fuel system →6Fuel systemPump, lines and pressure for the LS · 1 part
Fuel system
3 optionsWhy you need it: An LS runs about 58 psi of fuel pressure; a carbureted system runs 5–7 psi. The Supra TT in-tank pump runs to roughly 450 hp; 800+ hp turbo builds go to dual Aeromotive A1000 pumps. More: fuel system & E85 guide.
Options3 options
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
Compare 3 fuel system options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Warr Performance Walbro GSL392 255lph pump + Corvette-style filter/regulator -6AN kit Listed | — | LS swaps with returnless fuel rails; 58 psi Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Check price & fitment | In production | |
| Toyota (OEM Denso) Supra TT in-tank fuel pump Community | — | LS swaps up to roughly 450 hp Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Direct from Toyota (OEM Denso) | Used only | |
| Aeromotive A1000 fuel pumps (dual) + Aeromotive regulator Listed | — | Turbo/800+ hp LS-swapped Supra builds (documented with 210 lb/hr injectors) Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | LSXMag feature: 1994 Supra LS turbo drag car | In production |
More: Fuel & E85 guide
Ready for the next step when you've decided return or returnless, and sized the pump and injectors for your power and fuel.
Next: wiring, computer & tune →7Wiring, computer & tuneHarness, computer and tune matched to the engine · 1 part
Harness & computer
4 options · $325–$750Why you need it: The computer and harness have to match the engine's crank signal (24x or 58x) and throttle (cable or drive-by-wire), and the tune has to turn VATS off. More: 24x vs 58x, and which harness.
Options3 of 4
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
Compare 4 harness & computer options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Holley Dominator EFI ECU Listed | — | High-end/turbo LS-swapped Supra builds (tuner: Jon Capizzi in the documented build) Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | LSXMag feature: 1994 Supra LS turbo drag car | In production | |
| Painless Performance Custom/full wiring kit Listed | — | Race/full-custom LS Supra builds with Holley 7" dash displays | LSXMag feature: 1994 Supra LS turbo drag car | In production | |
| Current Performance Wiring Stock harness modification to standalone (Stage 1) Listed | — | $325.00 2026-10-01 | Gen 3/4 LS engines where the donor harness is supplied by the builder Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Direct from Current Performance Wiring | Small batch |
| PSI Conversion (via Texas Speed) Standalone LS harness (06-09 LS2 58x, T56/TR6060) Listed | — | $750.00 2026-10-01 | LS2 58x + T56/TR6060 Supra LS swaps Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Direct from PSI Conversion (via Texas Speed) | In production |
New Already have a tune in it? Send us the file for a free Tune Report: what to fix first, in plain English, within 1 business day. See what you get →
More: ECU comparison · Tuning
That's the last step. Put your picks together in the planner.
Plan your exact combination →Swap kits sold for this vehicle
Why it matters: the kit's mounts decide where the engine sits, and that decides oil pan, header and crossmember clearance. Confirm the kit lists your exact years. More: engine mounts and swap kits.
- — Sikky
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 harness, computer and tune
VATS delete, 24x vs 58x, drive-by-wire, harness makers.
A transmission
4L60E to 8HP70 behind an LS.