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Mustang Fox body LS swap
A typical Mustang Fox body LS swap runs about $11,000–$18,000 in parts ($7,000 on a budget), and the big decision is where the engine sits: the K-member decides everything.
Last updated
Ford · 1979–1993Swap kits verifiedFox1 parts list
LS Gen III/IV swap — moderate
1979–1993 Fox-body Mustang LS swap: ICT engine mount kit for the factory 5.0 K-member.
Parts and steps for the Mustang Fox body
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: 38 options across 10 of 10 categories. Thinnest: driveshaft.
What it costs: budget build about $7,000; typical build $11,000–$18,000 (parts, not labor, prices as of 2026-10-01).
Donor 5.3L, engine mounts, oil pan, accessory drive, headers, standalone harness/PCM, cooling, fuel, trans crossmember, driveshaft build; excludes transmission rebuild, body/paint, and labor.
Required parts priced so far: $300 (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 →
2Mounts, crossmember & oil panSet where the engine sits, then pick a pan that clears · 4 parts
Mounts & swap kits
6 options · $179.99–$300Why you need it: The mounts set where the engine sits, and that decides oil pan, header and driveline fit. The K-member decides everything. Each Hooker bracket fits one K-member; the stock one needs the Holley 302-3 pan, the Team Z and AJE ones need a longer steering shaft. Dirty Dingo mounts need a CTS-V-style pan and an aftermarket trans crossmember. More: engine mounts and swap kits.
Our pick and alternativespick + 2 of 6
Compare 6 mount & swap kit options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| ICT Billet LS swap engine mounts, Mustang Fox (5.0 K-member only) Verified Our pick | EM-LS-FXBDY1 | $300 2026-09-28 | Direct from ICT Billet | ||
| Hooker LS swap engine mount brackets for Team Z K-member Listed | 71221021HKR | 1979-93 Fox with Team Z TZM-KM-SWAP4 K-member (1/2 in drop) | Buy | In production | |
| Hooker LS swap engine mount brackets for AJE K-member Listed | 71221022HKR | 1979-93 Fox with AJE MU-40UM K-member (stock position) | Buy | In production | |
| AJE K-member kit with GM motor mounts, spring perches, lower control arms Listed | SUSK51 | 1979-93 Fox with GM LS engine | Check price & fitment | In production | |
| Dirty Dingo LS conversion mounts, Ford Upgrade Listed | DD-LS-MUST-2 | $179.99 2026-10-01 | 1979-93 Fox stock V8 K-member; 1.5 in adjustment Doesn't fit: Low-mount A/C compressors; DART blocks 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 | In production |
| Hooker LS swap engine mount brackets Listed | 71221013HKR | $268.95 2026-10-01 | 1979-93 Fox with stock 1984-95 OE or Maximum Motorsports MMKM-1 K-member | Buy | In production |
Oil pan
3 options · $499.95–$549.95Why you need it: The pan has to clear the crossmember, the ground and, on a 4x4, the front differential. A GM F-body pan needs the K-member notched; Holley's Mustang pan clears the Fox rack and a 4.00 in stroke. More: oil pan guide.
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 oil pan options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Holley LS swap wet-sump oil pan, natural Listed Our pick | 302-3 | $499.95 2026-10-01 | 1979-2004 Mustang LS swaps with stock OE or Maximum Motorsports K-member | Buy | In production |
| GM CTS-V (first-gen) oil pan Listed | — | 1979-93 Fox with Dirty Dingo DD-LS-MUST-2 mounts Doesn't fit: Holley 302-1 is lower profile alternative Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | GM junkyard / used | Used only | |
| Holley LS swap wet-sump oil pan, black Listed | 302-3BK | $549.95 2026-10-01 | 1979-1993 Mustang LS swap | Buy | In production |
Steering
2 optionsWhy 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 stock rag-joint shaft may not clear long tubes; a rag-joint eliminator shaft or a manual rack conversion are the usual fixes. More: steering shaft and box clearance.
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 steering options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Flaming River Manual steering rack conversion kit Listed Our pick | FR-1890LP | 1979-93 Mustang | Buy | In production | |
| Maximum Motorsports Steering shaft (rag-joint eliminator) Community | — | 1979-93 Fox with Hooker long-tube headers 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 Maximum Motorsports | In production |
Brakes & booster
1 option so far · $249.97Why you need it: A big cam can leave too little vacuum for the booster, and some swaps leave no room for one. Most Fox swaps leave no room for the vacuum booster; a kit adapts the 1999-04 Mustang hydroboost unit. More: vacuum booster or hydroboost?
Our pick1 option
Only 1 option found so far for the Mustang Fox body. Know another? Tell us →
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
2 optionsWhy 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. A Ford T5, T-3550, TR-3650 or TKO can stay behind the LS with an LS-to-Ford bellhousing. More: transmission 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 transmission adapter & clutch options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Quick Time Bellhousing, LS to Ford T5 / T-3550 / TR-3650 / TKO Listed | RM-6037 | LS engine to Ford T5, T-3550, TR-3650, TKO transmissions 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 | |
| GM (OEM pattern) No adapter — GM 4L60E/4L80E/T56 bolt directly to LS Community | — | LS with GM-pattern 4L60E, 4L80E, T56 Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | GM junkyard / used | Used only |
Crossmember
2 optionsWhy you need it: The transmission mount usually moves, and the crossmember sets the driveline angle. Hooker's 1979-93 crossmember takes a per-transmission adapter: 71223003HKR (4L60/70), 12650HKR (TH400/200-4R), 71223013HKR (4L80/85). More: getting driveline angles right.
Options2 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 |
|---|---|---|---|---|---|
| Hooker Transmission crossmember, 79-93 Listed | 71222016HKR | 1979-93 Fox; GM auto, Tremec, Ford 4R70W, 6R80, MT82 Doesn't fit: Mounts that move engine off stock offset 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 | |
| Stifflers Adjustable transmission crossmember Community | — | 1979-93 Fox (4R70W swap example) | Stifflers | In production |
Driveshaft
1 option so farWhy you need it: A different transmission is almost always a different length, so plan on a custom-length driveshaft. More: driveshaft length and angles.
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 driveshaft option
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| QA1 REV Series custom carbon fiber driveshaft Community | JJCAC0320001 | Custom length to order for 79-93 Fox 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 QA1 | In production |
Only 1 option found so far for the Mustang Fox body. Know another? Tell us →
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
8 options · $175–$482Why you need it: The balancer, water pump, brackets and pulleys must all be one spacing, or the belt won't line up. ICT's Fox alternator bracket works with a 1998-02 Camaro or 2004-06 GTO balancer; Holley's mid-mount drive is the all-in-one route. More: accessory drive guide.
Options3 of 8
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 8 accessory drive options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| ICT Billet LS Truck OEM Fox Body Power Steering Alternator Bracket Kit Mustang LS Swap Listed | 551791-3 | $175 2026-09-29 | 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 stock |
| ICT Billet LS1 Camaro OEM Fox Body Power Steering Alternator Bracket Kit Mustang LS Swap Listed | 551791-2 | $175 2026-09-29 | Foxbody LS swap with 98-02 Camaro or 04-06 GTO balancer 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 stock |
| ICT Billet LS Truck OEM Fox Body A/C Compressor Bracket Kit LS Swap Mustang Listed | 551792-3 | $350 2026-09-29 | 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 stock |
| ICT Billet LS1 Camaro OEM Fox Body A/C Compressor Bracket Kit LS Swap Mustang Listed | 551792-2 | $350 2026-09-29 | 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 stock |
| ICT Billet LS OEM Fox Body A/C Compressor Alternator Power Steering Bracket Swap Mustang AC Listed | 551795-2 | $482 2026-09-29 | 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 stock |
| ICT Billet LS OEM Fox Body A/C Compressor Alternator Power Steering Bracket Swap Mustang AC Listed | 551795-3 | $482 2026-09-29 | 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 stock |
| Holley Mid-mount complete accessory drive system Listed | 20-187BK | GM Gen III/IV 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. | Buy | In production | |
| Dirty Dingo Billet accessory brackets Community | — | 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 Dirty Dingo | In production |
Cooling
2 options · $679.54Why 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. Cold Case's LMM576K kit fits 1979-93 cars with dual 12 in fans and a shroud. More: radiator, fans and steam line.
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 cooling options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Cold Case Aluminum radiator kit with dual 12 in fans and shroud Listed Our pick | LMM576K | $679.54 2026-10-01 | 1979-1993 Mustang LS swap | Check price & fitment | In production |
| Mishimoto LS swap aluminum radiator, 3-row Community | MIS-RADMUS79DP | 1979-93 Mustang LS swap 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 Mishimoto | In production |
A/C
4 options · $376.91–$921.99Why you need it: Where the compressor mounts (high or low) can decide frame, fender and header clearance, so pick it before you buy brackets. Vintage Air's SureFit kit for 1979-86 V8 cars needs an LS top-mount compressor bracket; 1991-93 cars on a standalone ECU need a harness to keep the factory A/C controls. More: accessory drive guide.
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 A/C options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Vintage Air SureFit retrofit A/C kit, 1979-86 V8 Listed | — | 1979-86 Mustang V8; install documented on 1992 Fox for 1979–1986 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 Vintage Air | In production | |
| SVE (LMR) Dash and A/C integration harness for standalone ECU, 91-93 Listed | LRS-12581AH-93 | 1991-93 Fox with standalone engine harness/ECU for 1991–1993 only | Check price & fitment | In production | |
| Vintage Air LS narrow top-mount compressor bracket Listed | 141812 | $376.91 2026-10-01 | LS swaps retaining factory evaporator 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 |
| Holley A/C bracket system kit Listed | 20-141 | $921.99 2026-10-01 | LS swap high-mount A/C 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 |
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 · $360–$999.99Why 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. Header packages are sold with the K-member, mounts and steering shaft they were drawn around. Buy them together. More: headers and exhaust by chassis.
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 header & exhaust options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| ICT Billet LS Headers Mustang Fox Listed | SPE-25-1028 | $360 2026-09-29 | 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 | Out of stock |
| Speed Engineering 1-7/8 in long-tube headers with K-member package Community | 25-1028 package | $1,049.99 2026-10-01 | 1979-93 Fox with AJE K-member, AJE mounts, Flaming River steering shaft 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 Speed Engineering | In production |
| NK Performance Fox Body LS swap headers and K-member package Listed | — | $999.99 2026-10-01 | 1979-93 Fox (also 1994-04) 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 NK Performance | Small batch |
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
2 options · $311.77Why you need it: An LS runs about 58 psi of fuel pressure; a carbureted system runs 5–7 psi. On 1983-93 cars an in-tank pump on the factory hanger supports up to 700 hp of EFI. More: fuel system & E85 guide.
Our pick and alternatives2 options
Compare 2 fuel system options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Aeromotive In-tank fuel pump, 83-97 Fox Listed Our pick · for 1983–1997 only | 18638 | from $311.77 2026-10-01 | 1983-97 Fox body; supports up to 700 HP EFI for 1983–1997 only | Buy | In production |
| Aeromotive Eliminator Stealth fuel tank system, 86-98 Listed | 17131 | 1986-98 Mustang 5.0L Fox for 1986–1998 only | Check price & fitment | 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
2 options · $1,099Why 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.
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 harness & computer options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| BP Automotive Standalone LS swap harness Community | — | LS swaps needing standalone fuse/relay panels 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 BP Automotive | In production | |
| PSI Conversion Standalone LS engine harness with flashed PCM Listed | — | $1,099.00 2026-10-01 | 1999-2007 24X drive-by-cable LS with 4L60E/4L80E control 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 | 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.
- LS Swap Engine Mount - Mustang Fox — ICT Billet
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.
Fox body swap-parts budget
The listed ICT Billet EM-LS-FXBDY1 engine mounts cost about $300 at 2026 retail prices and fit the 5.0 K-member only. That is the listed swap-specific mount cost, before the engine, transmission, wiring/ECU and tune, fuel system, cooling and exhaust. Price your combination in the swap cost estimator.