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S10 / Sonoma / Blazer / Jimmy LS swap
A typical S10 / Sonoma / Blazer / Jimmy LS swap runs about $7,000–$12,000 in parts ($4,000 on a budget), and the big decision is where the engine sits: the bay is narrow and the steering shaft passes the driver-side header, so 2WD headers only fit with their matching mounts.
Last updated
Chevrolet/GMC · 1982–2004Swap kits verifiedS-series1 parts list
LS Gen III/IV swap — moderate
1982–2004 Chevy S10 / GMC Sonoma (2WD and 4WD) LS swap: PSI catalog of mounts, controller kits, oil pan kits, fuel and radiators for this platform.
Parts and steps for the S10 / Sonoma / Blazer / Jimmy
Every part option we know for each stage of the swap, plus 5 sourced facts and 20 owner questions. Open a step, start with our pick, and check all the options. Plan your exact combination →
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Before you buy
- Mounts, crossmember & oil pan Partly sourced
Decide where the engine sits (kit mounts or custom), then measure from the pan rail to the crossmember and to the ground before you choose an oil pan. - Transmission & driveline Verify yourself
Decide which transmission handles your torque and how it will be controlled, then plan the crossmember, driveshaft length and flexplate or bellhousing to match. - Accessories & cooling Verify yourself
Decide one accessory drive spacing, and match the balancer, water pump and brackets to it. Then check fan, hose and hood clearance. - Exhaust Well sourced
Decide headers or manifolds that clear the steering, frame and starter where your mounts put the engine. - Wiring, computer & tune Verify yourself
Decide a harness and computer that match your engine's crank signal (24x or 58x) and throttle (cable or drive-by-wire), and plan the tune, including VATS.
Biggest gap: mounts, crossmember & oil pan. Owners ask about it a lot (6 questions), but we have few sourced facts for this vehicle yet.
Parts we know for this vehicle: 38 options across 10 of 10 categories. Thinnest: fuel system.
What it costs: budget build about $4,000; typical build $7,000–$12,000 (parts, not labor, prices as of 2026-10-01).
6.0 or rebuilt 5.3, Stainless Works LSS10 long-tubes, Current Performance direct-fit harness + trans mount, Milodon 31083 pan, aluminum V8 conversion radiator, Dirty Dingo accessory brackets + low-mount A/C, dyno tune.
Required parts priced so far (2WD version): $144.99. We have no prices yet for the other version of this vehicle. (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 →
1Engine choicePick the engine, then confirm exactly which one it is
Kit-specific notes1 note
- Sanderson offers the LS150 with 1-1/2 in. primaries and the LS134 with 1-3/4 in. primaries as alternative primary-tube sizes to the LS158.
Why this step matters: 1 of 20 owner questions about this vehicle
- What does it take to complete an LS1/T56 swap in a 2000 S10 Xtreme?
More: Engine & donor finder · Making power
Ready for the next step when you know which engine you're using and have confirmed it by its RPO or VIN.
Next: mounts, crossmember & oil pan →2Mounts, crossmember & oil panSet where the engine sits, then pick a pan that clears · 4 parts
Mounts & swap kits
9 options · $54–$300Why you need it: The mounts set where the engine sits, and that decides oil pan, header and driveline fit. The bay is narrow and the steering shaft passes the driver-side header, so 2WD headers only fit with their matching mounts. 4WD trucks fight the front diff: some space the diff 3/4 in down, or run a Milodon 31083 pan. More: engine mounts and swap kits.
Our pick and alternativespick + 2 of 9
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
Compare 9 mount & swap kit options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| PSI Conversion 2WD LS S10 Adjustable Conversion Motor Mounts (82–04) Verified Our pick · for 2WD only | (2WD) | $144.99 2026-09-28 | for 2WD only | Direct from PSI Conversion | |
| PSI Conversion 4WD LS S10 Adjustable Conversion Motor Mounts (82–04) Verified | (4WD) | Price not clearly attributable on page for 4WD only | Direct from PSI Conversion | ||
| Jags That Run V8 Chevrolet S10 Truck LS1 Motor Mounts Listed | S10-108 | $54 2026-09-30 | 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 Front Motor Plate - Chevy S10 94-05 Listed | 551816-2S10 | $202 2026-09-29 | for 2nd gen 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. | Check price & fitment | In stock |
| ICT Billet LS/LT Engine Mid Plate - Chevy S10 94-05 Listed | 551817-2S10 | $202 2026-09-29 | for 2nd gen 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. | Check price & fitment | In stock |
| ICT Billet LS Front Motor Plate - Chevy S10 82-93 Listed | 551816-1S10 | $202 2026-09-29 | for 1st gen 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. | Check price & fitment | In stock |
| ICT Billet LS/LT Engine Mid Plate - Chevy S10 82-93 Listed | 551817-1S10 | $202 2026-09-29 | for 1st gen 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. | Check price & fitment | In stock |
| ICT Billet LS Swap Engine Mount Kit - Chevy S10 2WD Listed | EM-LS-2S10 | $300 2026-09-29 | for 2WD 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. | Check price & fitment | In stock |
| Current Performance Wiring 2.8 poly motor mounts (LS swap) Listed | — | 1982-2004 S10/Sonoma/Blazer/Jimmy 2WD LS swaps for 2WD 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 Current Performance Wiring | In production |
Oil pan
2 optionsWhy you need it: The pan has to clear the crossmember, the ground and, on a 4x4, the front differential. 2WD S10s take the Holley retrofit pan; the Milodon swap pan has more clearance and fits every S10, 2WD or 4WD. More: oil pan guide.
Options2 options
Compare 2 oil pan options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Holley LS retrofit oil pan Listed | 302-1 | 1982-2004 S10/Sonoma/Blazer/Jimmy (2WD); 4WD needs 3/4in diff spacer for 2WD only | Buy | In production | |
| Milodon LS swap oil pan Listed | 31083 | 1982-2004 S10/Sonoma/Blazer/Jimmy (2WD and 4WD) | retailers | In production |
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. Hooker sells separate S10 swap shafts for 1982-93 (71223022HKR) and 1994-2004 (71223031HKR) that buy room for the driver-side header. More: steering shaft and box clearance.
Options1 option
Compare 1 steering option
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Hooker Blackheart LS swap steering shaft Listed | 71223022HKR / 71223031HKR | 1982-1993 (71223022HKR) / 1994-2004 (71223031HKR) S10/Sonoma for 1982–1993, 1994–2004 only | Buy | In production |
Only 1 option found so far for the S10 / Sonoma / Blazer / Jimmy. Know another? Tell us →
Brakes & booster
1 option so farWhy you need it: A big cam can leave too little vacuum for the booster, and some swaps leave no room for one. More: vacuum booster or hydroboost?
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 brake & booster option
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| GM Brake booster vacuum port check valve Community | 15823207 | 1982-2004 S10/Sonoma/Blazer/Jimmy LS swaps (vacuum boosters) 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 / parts stores | In production |
Only 1 option found so far for the S10 / Sonoma / Blazer / Jimmy. Know another? Tell us →
Everything else1 note
- 2WD and 4WD use different mount kits (4WD kit much more expensive).
Why this step matters: 6 of 20 owner questions about this vehicle
- Which mounts, headers, oil pan, and radiator do I need before installing a V8 into an S10?
- My H3 oil pan hangs below the crossmember on a bagged 5.3 S10 swap - what should I do about it?
- How do you fit a clutch master and keep the engine wiring clear on a T56-swapped S10?
- What oil pan and clearance work does a 2004 GTO LS1 need to fit an S10?
- What does a 4.8L into a 1983 S10 4x4 really require, and what does it cost?
More: Mounts & swap kits guide · Oil pan guide · Steering clearance guide
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. 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 |
|---|---|---|---|---|---|
| GM Performance Flexplate spacer kit for early automatics Listed | 12563532K | LS to TH350/TH400 and other early automatics 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 Performance dealers | In production | |
| Aftermarket LS trans adapter spacer Community | — | 1982-2004 S10 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. | eBay / retailers | In production |
Crossmember
3 options · $408.95Why you need it: The transmission mount usually moves, and the crossmember sets the driveline angle. On an S10 the trans crossmember is a fab item; Current Performance sells a swap trans mount for 1982-2004 trucks. More: getting driveline angles right.
Options3 options
Compare 3 crossmember options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Hooker BlackHeart LS swap transmission crossmember, 1982-2004 S10/Sonoma 2WD Listed | 71222018HKR | 1982-2004 S10 and Sonoma, 2WD. 700R4, TH350, or Powerglide. Doesn't fit: 4WD. Blazer and Jimmy are not on this listing. for 2WD only | Buy | ||
| Hooker BlackHeart LS swap transmission crossmember, 1982-2004 S10/Sonoma 2WD Listed | 71222020HKR | 1982-2004 S10 and Sonoma, 2WD. 4L80E. Doesn't fit: 4WD. Blazer and Jimmy are not on this listing. for 2WD only | Buy | ||
| Hooker BlackHeart LS swap transmission crossmember, 1982-2004 S10/Sonoma 2WD Listed | 71222019HKR | $408.95 2026-10-15 | 1982-2004 S10 and Sonoma, 2WD. T56, 4L60E, 4L70E, 4L75E, or TH400. Doesn't fit: 4WD. Blazer and Jimmy are not on this listing. for 2WD only | Buy |
Driveshaft
2 optionsWhy you need it: A different transmission is almost always a different length, so plan on a custom-length driveshaft. S10 shafts are custom: build it only after the engine and crossmember are final, and a 4WD shaft needs transfer-case-to-axle measurements. 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 |
|---|---|---|---|---|---|
| Driveshaft shop (local) Custom made driveshaft Listed Our pick | — | 1982-2004 S10 LS swaps | local shop | DIY | |
| Tom Wood's Custom Drive Shafts Custom fabricated driveshaft (built to your measurements) Listed | — | 1982-2004 S10 LS swap; custom built to your measurements (Chevy truck applications supported) 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 Tom Wood's Custom Drive Shafts | Small batch |
Why this step matters: 3 of 20 owner questions about this vehicle
- Which automatic should I run behind a 408ci LQ9 stroker with a 175 shot — 700R4, 4L60E, or 4L80E?
- Which cheap manual transmissions fit an LS swap S10, and what flywheel/clutch parts are needed?
- Where does the T56 shifter land in an S10 compared to the stock NV3500?
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
3 options · $128–$300Why you need it: The balancer, water pump, brackets and pulleys must all be one spacing, or the belt won't line up. Dirty Dingo's S10 brackets come in Corvette, Camaro and truck spacing to clear the stock steering box. 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 accessory drive options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| ICT Billet S10 LS Mounting Base Plates (Remote Coil Brackets on Stock Valve Cover) Listed | 551115-01 | $128 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 A/C and Power Steering Bracket S10 Pump - Truck Spacing Listed | 551779-3 | $300 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 |
| Dirty Dingo Alt/PS/AC accessory bracket set Listed | DD-LS1-ALT-PS-SANDEN-CM | 1982-2004 S10 2WD for 2WD only | Direct from Dirty Dingo | In production |
Cooling
4 options · $60–$100Why 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. The S10 V8 conversion radiator (15 x 23-5/8 in core, about 450 hp) needs the support bushings trimmed and has 1-3/8 in ports, a steam port and a trans cooler. More: radiator, fans and steam line.
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.
We have not confirmed this part on this vehicle yet. If you installed it, tell us what you used and why.
Compare 4 cooling options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| ICT Billet LS Lower Radiator Hose - 1982-1993 Chevy S10 Listed | HS-LR-1S10 | $60 2026-09-29 | for 1st gen 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. | Check price & fitment | In stock |
| ICT Billet LS Upper Radiator Hose - 1982-1993 Chevy S10 Listed | HS-UR-1S10 | $60 2026-09-29 | for 1st gen 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. | Check price & fitment | In stock |
| ICT Billet LS Upper & Lower Radiator Hose Kit - 1982-1993 Chevy S10 Listed | HS-K1T-1S10 | $100 2026-09-29 | for 1st gen 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. | Check price & fitment | In stock |
| 2-row aluminum V8 conversion radiator, 15x23-5/8 core Listed | — | 1982-2002 S10 (rated to ~450 hp) for 1982–2002 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. | conversion radiator vendors | In production |
A/C
1 option so farWhy you need it: Where the compressor mounts (high or low) can decide frame, fender and header clearance, so pick it before you buy brackets. On a 2WD S10 the low-mount A/C fits in truck spacing; Sanden 508 and SD7B10 brackets are the other options. More: accessory drive guide.
Options1 option
Compare 1 A/C option
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| Dirty Dingo Low-mount A/C bracket (truck spacing) Listed | — | 1982-2004 S10 2WD for 2WD only | Direct from Dirty Dingo | In production |
Only 1 option found so far for the S10 / Sonoma / Blazer / Jimmy. Know another? Tell us →
Why this step matters: 4 of 20 owner questions about this vehicle
- What radiator, fan, computer, and harness work for a V8 swap in a 2000-2003 S10?
- How do I replace the rear main seal on an LS?
- How do I control electric fans on an LS swap without trusting the driver to flip a switch?
- How do you wire a 2002 Dodge Intrepid dual electric fan (two black, one yellow, one green wire) for manual control?
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
6 options · $449–$800Why 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. 2WD headers route a primary around the stock steering shaft and need the matching mounts; 4WD trucks use cast manifolds. A Hooker swap steering shaft adds room. More: headers and exhaust by chassis.
Options3 of 6
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 6 header & exhaust options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| PerTronix 1982-04 2WD Chevy S10/S15/Blazer/Jimmy 1 5/8" Clippster LS1-LS9 Engine Swap Header with Metallic Ceramic Coating Listed | H8073-1 | $449 2026-09-29 | for 2WD 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. | Check price & fitment | In stock |
| PerTronix 1982-04 2WD Chevy S10/S15/Blazer/Jimmy 1 5/8" Clippster LS1-LS9 Engine Swap Header with Hi-Temp Black Coating Listed | H8073 | $452.97 2026-09-29 | for 2WD 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. | Check price & fitment | In stock |
| Jags That Run Special LS1 S10 Header & Mounting Package — Steel Listed | S10-LS1pkgP | $470 2026-09-30 | 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 |
| Jags That Run Special LS1 S10 Header & Mounting Package — Ceramic Listed | S10-LS1pkgC | $800 2026-09-30 | 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 |
| Speed Engineering 1-3/4 in shorty LS swap headers Listed | 25-1039 | 1982-2004 S10/Sonoma; 1983-2005 Blazer/Jimmy (2WD) Doesn't fit: Will not work on 4x4 applications for 2WD only | Check price & fitment | In production | |
| Stainless Works (via Current Performance) 1-7/8 in long-tube headers, 3 in collectors Listed | LSS10 | 1985-2004 2WD S10/S15/Sonoma/Blazer/Jimmy (best fit 1st gen originally 4.3L V6) Doesn't fit: 4x4 for 1985–2004 only, 2WD only | Direct from Stainless Works (via Current Performance) | In production |
Kit-specific notes4 notes
- The Sanderson LS158 street-rod header has 1-5/8 in. primaries and a 3.0 in. collector, suited to stock-through-performance LS engines.
- Sanderson's specification table for the LS158 header lists a 2.5 in. collector diameter, conflicting with the 3.0 in. collector stated in the page body text.
- Sanderson's LS158 header is listed for GM LS1, LS2, LS3, LS4, LS6, and LS7 V8 engines.
- Sanderson's LS158 header uses a mild swept-back design that fits tight to the engine block for street-rod applications.
Why this step matters: 1 of 20 owner questions about this vehicle
- Are there quality long-tube headers made for an LS-swapped S10, and which mount kits do they fit?
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
1 option so far · $16.99Why you need it: An LS runs about 58 psi of fuel pressure; a carbureted system runs 5–7 psi. A returnless S10 setup runs an internally regulated Corvette filter with quick-disconnect fittings. More: fuel system & E85 guide.
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 fuel system option
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| ICT Billet Quick-disconnect fuel fittings + Corvette filter Listed | AN809-01B | $16.99 2026-10-01 | 1982-2004 S10 LS swaps (returnless with Corvette filter/regulator) 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 ICT Billet | In production |
Only 1 option found so far for the S10 / Sonoma / Blazer / Jimmy. Know another? Tell us →
Why this step matters: 1 of 20 owner questions about this vehicle
- What fuel pump options work for an LSx-swapped S10?
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. Direct-fit S10 harnesses reuse the truck's original fuse block and body connectors. More: 24x vs 58x, and which harness.
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 harness & computer options
| Maker / product | Part # | Price | Fits / notes | Where | Status |
|---|---|---|---|---|---|
| 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) Verified Our pick | (Gen 3 24X DBC kit) | $1,099 2026-09-28 | Ready-to-run option; flashed for application | Direct from PSI Conversion | |
| Current Performance Wiring LSx/LT direct-fit custom wiring harness Listed | — | 1982-2004 S10/Blazer/Sonoma/Jimmy LS swaps | Direct from Current Performance Wiring | In production | |
| Holley Terminator X (universal LS ECU kit) Community | — | 1982-2004 S10/Sonoma/Blazer/Jimmy 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. | Holley / retailers | 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 →
Why this step matters: 2 of 20 owner questions about this vehicle
- My Microsquirt LS swap runs rich with Deka 60s and nothing on the gauges looks wrong; where do I start troubleshooting?
- My 89 S10 has a carbed 5.3 with MSD 6LS and needs to pass a two-speed-idle emissions test; what's the fix?
More: ECU comparison · Tuning
Ready for the next step when the harness and computer match your engine's crank signal and throttle, and you have a plan for the tune.
Next: cost →8CostThe whole budget, not just the engine
We don't have notes for this step on this vehicle yet, so measure and confirm with the part maker before you buy.
Answered for this vehicle1 answer
Why this step matters: 1 of 20 owner questions about this vehicle
- What does a complete 5.3 LS swap into a first-gen S10 Blazer cost, and which parts are needed?
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.
- — PSI Conversion
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.