LSA 6.2L engine: specs, donor vehicles & swap notes
The LSA is a 6.2 L aluminum-block Generation IV engine built 2009–2017, rated 556–580 hp. It came in 4 vehicle applications, including Cadillac CTS-V, Chevrolet Camaro ZL1.
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| Spec | Value |
|---|---|
| RPO | LSA |
| Family | Generation IV |
| Years | 2009–2017 |
| Displacement | 6.2 L / 376 ci |
| Horsepower | 556–580 hp |
| Torque | 551–556 lb-ft |
| Bore × stroke | 4.065 × 3.622 in |
| Compression | 9.10:1 |
| Block | aluminum |
| AFM/DOD | No |
| VIN 8th digit | P |
| Reluctor | 58x |
| Stock cam | Cam PN 12623064; duration 198°/216° @.050 in. int./exh.; valve lift 0.492"/0.480" int./exh.; 122.5° LSA; 1-bolt gear, 4x; AFM No, VVT No. |
| Firing order | 1-8-7-2-6-5-4-3 |
| Oil capacity | 6.0 qt |
| Oil filter | 89017524 / PF48 |
| Spark plug | 12571165 / 41-104 |
| Plug gap | 0.040 in |
| Head casting | 4863 |
- Supercharger rattle at idle (isolator/bearing grease). Fix: GM warranty supercharger replacement; solid isolator coupler.
- Intercooler heat soak. Fix: High-capacity intercooler and fan package.
- Intercooler brick end-tank collapse at higher boost. Fix: Reinforced intercooler brick (Lingenfelter).
Aluminum, supercharger
The LSA specs above are not yet confirmed against GM documents; GM ratings varied by year and vehicle.
How the LSA differs from the other 6.2 L Gen IV engines
The LSA is one of the seven 6.2 L Gen IV engines we list: L92, L94, L99, L9H, LS3, LS9, LSA. From our engine table:
- No AFM. The L94, L99 have it, so the LSA is the easier cam-swap candidate of the group.
- Compression 9.10:1, tied with the LS9 for the lowest of the group.
- Up to 580 hp from the factory (2nd of the seven 6.2 L Gen IV engines we list; the group tops out at 638 hp).
- No VVT (the L92, L94, L99, L9H have it).
- Built 2009–2017.
Swapping the LSA: what to plan for
- Computer: the LSA has a 58x crank. An E38 or E67 matches it; a 0411/P59 also needs a 58x-to-24x converter box and its own sensor and knock-sensor wiring. Throttle and wiring have to suit the computer too. More: how to wire your LS (the full checklist for your engine and computer).
- Factory supercharged: the intercooler pump and front heat exchanger come with it, so plan space ahead of the radiator, and plan the fuel system for boost. More: fuel system sizing.
- From a 2012–2015 Camaro ZL1: Corvette accessory spacing (the ZL1 uses it). More: accessory drive spacing.
- From a Cadillac CTS-V: Corvette accessory spacing; the CTS-V has its own oil pan. More: oil pans.
Refresh parts for the LSA
From our Gen IV refresh list, the parts that are specific to the LSA. Seals, gaskets and the upgrades worth doing on any Gen IV with the engine out are in the full refresh list, next to every torque spec.
| Part | GM part # | Why for this engine |
|---|---|---|
| GM cylinder head gasket for GM LS9 engines, 4.100 in bore, .054 in compressed thickness, each | 12622033 | Listed for the LSA; a new gasket goes on any time the heads come off. |
| LSXceleration Gen IV LS knock sensor 28-23730 | 28-23730 | The LSA has its knock sensors on the side of the block. |
| GM Gen IV camshaft position sensor 12591720 (58x engines) | 12591720 | 58x LSA: the cam sensor lives in the front cover. |
| Chevrolet Performance 58x crankshaft position sensor 12703627 | 12703627 | 58x LSA: the crank sensor is behind the starter. |
From real tunes: 6.2 L on a Gen IV computer
What these settings look like in the 27 boosted pump-gas tunes for 6.2 L engines on Gen IV computers (E38, E67 and the 24x E40) in our tune library (as of 2026-10-15). Every RPO of this size is pooled, not only the LSA, and so are all cams, heads and builds: that is why the ranges are wide. Use them to spot a value that is far outside what works, not as your numbers.
| Setting | Range | Median | Tunes |
|---|---|---|---|
| Hot idle target | 575 rpm to 850 rpm | 675 rpm | 27 (middle 80%) |
| Warm idle airflow, in gear | 6.0 g/s to 11.5 g/s | 6.9 g/s | 27 (middle 80%) |
| Idle spark (around 800 rpm) | 6° to 18° | 15° | 27 (middle 80%) |
| Power enrichment (PE) lambda | 0.75 to 0.82 | 0.78 | 25 (middle 80%) |
Boosted builds pool every boost level, so we leave WOT spark out: it depends on boost, fuel and intercooling.
For starting values matched to your LSA's cam, injectors and fuel, use the turn-on tune builder. Always finish on a dyno, and read our safe tuning limits before any wide-open pass.
Donor vehicles with the LSA
Where to find an LSA at the junkyard: 4 vehicle applications below. Confirm it from the RPO sticker in the glovebox or the 8th VIN digit (for the LSA: P).
| Vehicle | Years |
|---|---|
| Cadillac CTS-V | 2009–2015 |
| Chevrolet Camaro ZL1 | 2012–2015 |
| HSV GTS GEN-F | 2013–2017 |
| Vauxhall VXR8 GTS, GTS-R | 2013–2017 |
Buying a used LSA
A used LSA has no single part number, so this page does not link a search. Confirm the engine from the RPO sticker or the 8th VIN digit (for the LSA: P) before you buy.