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Corvette C4 LS swap
A typical Corvette C4 LS swap runs about $9,000–$16,000 in parts ($4,500 on a budget), and the big decision is where the engine sits: 1984-91 and 1992-96 cars take different mounts.
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Chevrolet · 1984–1996Kits listed by vendorsC41 parts list
LS Gen III/IV swap — moderate
1984–1991 C4 Corvette LS swap with a bolt-in mount kit that keeps the factory drivetrain angle and uses an F-body style oil pan.
Recommended engine: Most Gen III/IV LS (LS1, LS2, LS3, 5.3, 6.0) with an F-body style oil pan and a low-profile intake for hood clearance (BRP) — compare LS engines & donors
Parts and steps for the Corvette C4
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: 42 options across 10 of 10 categories.
What it costs: budget build about $4,500; typical build $9,000–$16,000 (parts, not labor, prices as of 2026-10-01).
5.7-6.0L LS, built 4L60E or T56, PSI/BP harness, DeWitts LS radiator + fans, Dirty Dingo/Speedway mounts, Sanden A/C via Kwik bracket, new clutch/converter, exhaust, tune. Parts only, DIY labor; shops add $5k+.
Required parts priced so far: $529 (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 1984–1991 Corvette C4. 1992–1996 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
6 options · $165.99–$529Why you need it: The mounts set where the engine sits, and that decides oil pan, header and driveline fit. 1984-91 and 1992-96 cars take different mounts. The low-mount A/C doesn't clear, the BRP kit wants F-body accessories, and the C-beam carries the transmission instead of a 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 |
|---|---|---|---|---|---|
| BRP Hot Rods (MuscleRods) 1984-1991 Corvette LS Conversion Kit (2 motor mounts, engine mount bolt kit, C-beam bolt kit) Verified Our pick · for 1984–91 only | LSX31 | $529 2026-09-28 | Holds factory tilt; no tunnel mods for ZF 6-speed, T56, 4L60E for 1984–91 only | Check price & fitment | |
| Dirty Dingo C4 LS Gen III/IV conversion mounts (DD-3500-SP for 1992-96) Listed | — | 1984-1991 and 1992-1996 C4 Doesn't fit: LT Gen V will not fit with stock hood for 1992–1996, 1984–1991 only | Dirty Dingo | In production | |
| Hooker SBC-to-LS engine mount adapter plates Listed | 12611HKR | C4; lets LS bolt to stock SBC frame mounts | Buy | In production | |
| BRP Hot Rods (MuscleRods) C4 LS conversion kit (mounts + trans crossmember bracket) Listed | — | C4 Corvette; designed around F-body accessories Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | BRP Hot Rods | In production | |
| Speedway Motors C4 Corvette to LS Solid Motor Mount Conversion Kit, 1984-1991 Listed | 916C4001 | $165.99 2026-10-01 | 1984-1991 C4; all LS engines Doesn't fit: Will NOT work on 1992-1996 C4's with LT1 and LT4 engines for 1984–91 only | Speedway Motors | In production |
| Speedway Motors C4 Corvette to LS Motor Mount Conversion Kit, 1984-1991 (polyurethane) Listed | 916C4000 | $190.99 2026-10-01 | 1984-1991 C4; all LS engines Doesn't fit: Will NOT work on 1992-1996 C4's with LT1 and LT4 engines for 1984–91 only | Speedway Motors | In production |
Oil pan
4 optionsWhy you need it: The pan has to clear the crossmember, the ground and, on a 4x4, the front differential. A 1998-2002 F-body pan doesn't clear the C4's factory power-assist slave cylinder; a CTS-V pan gives the most ground clearance of the stock pans. More: oil pan guide.
Our pick and alternativespick + 2 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 oil pan options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Chevrolet Performance Muscle Car Oil Pan kit Listed Our pick | 19212593 | C3/C4 Corvette LS swaps | Buy | In production | |
| GM (used) C5 Corvette oil pan Community | 12561828 | C4 Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Junkyard/eBay used | Used only | |
| GM (used) 1998-2002 F-body (Camaro) oil pan Listed | — | C4 with BRP/Speedway mounts Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Junkyard/eBay used | Used only | |
| GM CTS-V oil pan Listed | DD-LS-OP-CTSV | ~$300+ 2011-12-08 | C4 with BRP mounts 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 dealers | 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 C4 rack stays: a C5 pump runs it with the stock lines bent slightly, or an adapter fitting mates the LS pump's O-ring port to the C4 flare lines. 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 |
|---|---|---|---|---|---|
| Stock C4 Stock C4 rack retained Listed Our pick | — | C4 LS swaps | Reuse stock | Used only | |
| Dirty Dingo LS conversion high-pressure PS fitting Listed | DD-LS-PS-F1 | $26.99 2026-10-01 | LS pumps to older GM lines Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Dirty Dingo | In production |
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. Hydroboost on a Corvette needs a shorter master cylinder to clear the hood reinforcement. 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 |
|---|---|---|---|---|---|
| Petris Enterprises LS conversion C4 power brake booster hose + valve kit Community | 0585281 | $38.88 2026-10-01 | 1984-1996 C4 Doesn't fit: Valve kit #0585281 required to connect Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Petris Enterprises | |
| GM Hydroboost (used/new) Hydroboost unit + Wilwood short master cylinder Community | — | LS restomod Corvettes Doesn't fit: Needs shorter master cylinder for hood reinforcement clearance Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Junkyard/parts stores | 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
4 options · $30.99–$375.95Why 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. ZF 6-speed, T56 and 4L60E fit 1984-91 C4s without tunnel work, but an F-body 4L60E tail housing needs a fabricated bracket to meet the C-beam. More: transmission guide.
Our pick and alternativespick + 2 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 transmission adapter & clutch options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| TCI Automotive LS1 engine to GM auto transmission adapter Listed Our pick | 399753 | $375.95 2026-10-01 | LS to TH350/TH400/700R4/4L60 pattern autos | Buy | In production |
| PATC (TransmissionCenter) C4 tail housing adapter for late-model 4L60E Community | — | $214.00 2010-01-17 | Late 6-bolt 4L60E into C4 retaining C-beam Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | PATC / transmissioncenter.net | In production |
| DIY route F-body 4L60E + trimmed output shaft Community | — | F-body 4L60E into C4 Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Junkyard/DIY | DIY | |
| Speedway Motors LS crankshaft torque converter adapter sleeve Listed | 57518346 | $30.99 2026-10-01 | LS crank to early converter pilot | Speedway Motors | In production |
Crossmember
3 optionsWhy you need it: The transmission mount usually moves, and the crossmember sets the driveline angle. A T56 or TR6060 needs a fabricated C-beam bracket, and a 700R4 or 4L60E needs the D36 C-beam holes relocated. More: getting driveline angles right.
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.
Compare 3 crossmember options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Stock C4 (modified) D36 C-beam with relocated holes Community | — | 700R4/4L60E LS swap in C4 Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | DIY | DIY | |
| DIY/fabricated Custom T56 C-beam adapter bracket Listed | — | T56/TR6060 in C4 | DIY fab | DIY | |
| Aftermarket T56-to-C-beam adapter bracket Community | — | ~$200 2006-08-04 | T56 in C4 Doesn't fit: D44 C-beam may need trimming; hole elongation + 1/4" notch for shifter housing Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Swap vendors / small sellers | In production |
Driveshaft
2 optionsWhy you need it: A different transmission is almost always a different length, so plan on a custom-length driveshaft. The stock 3 in shaft can stay with a similar-length 4L60E or TH400; an F-body 4L60E tail may need 5/8 in trimmed off the output shaft and slip yoke. More: driveshaft length and angles.
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 driveshaft options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Stock C4 (retained) Stock 3" driveshaft with slip yoke Community | — | C4 with 4L60E/TH400 of similar length Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Reuse stock | Used only | |
| Driveshaft shop Custom shortened/balanced driveshaft Community | — | C4 T56 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. | Local driveshaft shop | 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
4 options · $100Why you need it: The balancer, water pump, brackets and pulleys must all be one spacing, or the belt won't line up. 1998-2002 F-body or C5 accessories are the usual pick; a truck drive sits the alternator high, so check hood clearance. 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 accessory drive options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| GM (used) 1998-2002 F-body accessories Listed | — | C4 with BRP mounts Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Junkyard/eBay used | Used only | |
| GM (used) C5 Corvette accessories Listed | — | 1991 C4 (LS3/TR6060) Doesn't fit: C6 A/C compressor (ports out side) has no room between C4 frame rails for 1984–91 only | Junkyard/eBay used | Used only | |
| Holley Holley LS accessory drive kit Community | — | C4 Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Holley dealers | In production | |
| DIY Truck accessories + Trailblazer water pump Community | — | ~$100 2016-12-07 | C4 Doesn't fit: Truck alternator sits high - check hood clearance | Junkyard/DIY | DIY |
Cooling
2 options · $874.99–$938.99Why 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. DeWitts' 1990-96 direct-fit LS radiator has a 1.25 in inlet and 1.50 in outlet; the Be Cool needs shroud work and 72006/72007 fan spacers. More: radiator, fans and steam line.
Our pick and alternatives2 options
Compare 2 cooling options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| DeWitts 1990-1996 C4 Direct Fit LS conversion radiator + optional dual 11" fans Listed Our pick · for 1990–1996 only | — | $938.99 2026-10-01 | 1990-1996 C4 Doesn't fit: Listed for 1990-1996 only for 1990–1996 only | DeWitts | In production |
| Be Cool 89-96 Corvette direct-fit radiator Listed | 60046 | $874.99 2026-10-01 | 1989-1996 C4 for 1989–1996 only | Check price & fitment | In production |
A/C
3 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. A C5 compressor fits with a conversion plate; a C6 compressor's side ports leave no room between the C4 frame rails. More: accessory drive 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.
Compare 3 A/C options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Kwik Performance K10673 wide-mount mini AC bracket (Sanden SD7B10 7176) Listed | — | LS Corvette-spacing engines Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Kwik Performance | In production | |
| Dirty Dingo Low-mount AC bracket DD-LS-AC-LM / Sanden 508 bracket DD-LS-SANDEN-AC-CV Community | DD-LS-AC-LM | $149.99 2026-10-01 | Gen III/IV LS Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Dirty Dingo | In production |
| Hotrod Air / DIY C5 compressor + Hotrod Air conversion plate, custom hoses Listed | — | 1985 C4 (C5 accessories) Doesn't fit: C6 compressor ports out the side - no room between C4 frame rails for 1984–91 only | Hotrod Air / hose shop | 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
4 options · $387.99Why 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. Stock C5 manifolds bolt in as the budget fit. The Speedway long tubes have the O2 bungs in the collectors; the C5 pan can crowd some headers. More: headers and exhaust by chassis.
Our pick and alternativespick + 2 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 header & exhaust options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Speedway Motors C4 Corvette LS Swap Long Tube Headers 1-3/4" Listed Our pick | 916C4003 | $387.99 2026-10-01 | 1984-1996 C4; LS1/5.3/6.0/LS3 | Speedway Motors | In production |
| Melrose Corvette C4 LS swap headers Community | — | C4 Doesn't fit: No longer manufactured Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Melrose Corvette (defunct line) | Discontinued | |
| eBay sellers (generic) C5 stainless headers 1-7/8" primary, 3" collector Community | — | C4 with minor fab work Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | eBay | Used only | |
| GM (used) Stock C5 exhaust manifolds Listed | — | C4 (bolt to LS heads) Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Junkyard/eBay used | Used only |
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 options · $109Why you need it: An LS runs about 58 psi of fuel pressure; a carbureted system runs 5–7 psi. Factory C4 lines and pump support about 450-550 rwhp, and a C5 filter-regulator makes it a returnless system for stock or mild builds. More: fuel system & E85 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.
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 |
|---|---|---|---|---|---|
| Racetronix C4 fuel pump assembly upgrade kit (Walbro 190 or 255 lph) Listed Our pick · for 1984–91 only | FPA-011 / FPA-011H | $109.00 2026-10-01 | 1986-1989 C4 (FPA-011); other years similar kits Doesn't fit: Factory lines/pump support ~450-550 rwhp max for 1984–91 only | Racetronix dealers (e.g. C8 Motorsports) | In production |
| GM/Delphi (used) C5 fuel filter with integrated regulator Listed | — | C4 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. | Parts stores/Junkyard | In production | |
| Tanks Inc Baffled EFI fuel tank Listed | — | C4; 340+ lph pump suggested for LSA Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Tanks Inc dealers | 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
3 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.
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 harness & computer options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| BP Automotive DIY stand-alone factory harness mod fuse/relay kits Listed | — | LT1/5.7 Vortec/LS1/LS2/LS3/LSA/99-07 truck LS Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | BP Automotive | In production | |
| Generic (Amazon/eBay) Standalone LS swap harness (DBC, T56/non-electric auto) Listed | — | 1997-2006 4.8/5.3/6.0 DBC; T56/TH400/TH350/700R4 Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | Amazon | In production | |
| PSI Conversion LS standalone harness + flashed PCM kit Listed | — | $1,099.00 2026-10-01 | 1999-2007 24x DBC LS with 4L60E/4L80E Unconfirmed Confirm this We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why. | 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.
- — Amazon (3rd-party)
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.