LT2 6.2L engine: specs, donor vehicles & swap notes
The LT2 is a 6.2 L aluminum-block Generation V engine built 2020–2026, rated 490–495 hp. It came in 1 vehicle application, including Chevrolet Corvette C8. Things to know: it has AFM, so an aftermarket cam means a full AFM delete; it has variable valve timing; it is direct-injected (Gen V parts and controller).
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| Spec | Value |
|---|---|
| RPO | LT2 |
| Family | Generation V |
| Years | 2020–2026 |
| Displacement | 6.2 L / 376 ci |
| Horsepower | 490–495 hp |
| Torque | 465–470 lb-ft |
| Bore × stroke | 4.065 × 3.622 in |
| Compression | 11.50:1 |
| Block | aluminum |
| AFM/DOD | Yes |
| Firing order | 1-8-7-2-6-5-4-3 |
| Head casting | 12620549 |
| Computer | Global B (HP Tuners' computer unlock first) |
We tune and review logs for the LT2
Gen V LT on HP Tuners. Send your Global B .hpt after you have bought HP Tuners' ECM/TCM unlock. The free Tune Report tells you what to fix first, in plain English, within 1 business day of getting your file. Full Custom is built from your logs.
Free Tune Report Full Custom from $199
LT reports use the same format as the LS sample. The free turn-on values are LS swap tools only; LT owners start with the Tune Report or Full Custom.
- Direct-injection intake valve carbon buildup. Fix: Walnut-blast intake valves and ports; quality fuel and frequent oil changes slow buildup.
- AFM-related oil consumption. Fix: Check oil level regularly; AFM delete and correct-viscosity oil reduce consumption.
Aluminum, VVT, AFM, DI, dry sump
The LT2 specs above are not yet confirmed against GM documents; GM ratings varied by year and vehicle.
How the LT2 differs from the other 6.2 L Gen V engines
The LT2 is one of the six 6.2 L Gen V engines we list: L86, L87, LT1, LT2, LT4, LT5. From our engine table:
- AFM (cylinder deactivation): yes. Same as the L86, L87, LT1, LT4; the LT5 doesn't.
- Compression 11.50:1, tied with the L86, L87, LT1 for the highest of the group.
- Up to 495 hp from the factory (3rd of the six 6.2 L Gen V engines we list; the group tops out at 755 hp).
- Variable valve timing. Also on the L86, L87, LT1, LT4, LT5.
- Built 2020–2026.
Swapping the LT2: what to plan for
- Computer: the LT2 is a Gen V direct-injection engine, so it needs a Gen V computer or a Gen V-specific aftermarket kit; Gen III/IV harnesses and computers don't run it. More: LS swap ECU comparison.
- AFM (cylinder deactivation): an aftermarket cam on the LT2 means a delete kit made for Gen V engines, plus the tune.
- Dry sump from the factory: plan room for the tank and lines, or a wet-sump conversion (pan, pickup and pump made for it). More: oil pans.
Refresh parts for the LT2
From our Gen V refresh list, the parts that are specific to the LT2. Seals, gaskets and the upgrades worth doing on any Gen V with the engine out are in the full refresh list, next to every torque spec.
| Part | GM part # | Why for this engine |
|---|---|---|
| GM Gen V LT knock sensor 12623095 | 12623095 | Gen V knock sensor, as on the LT2. |
| GM Gen V LT camshaft position sensor 12623093 | 12623093 | Gen V cam sensor for the LT2. |
| GM Gen V LT crankshaft position sensor 12669636 | 12669636 | Gen V crank sensor for the LT2. |
| OEM-style LT Gen 5 cylinder head bolt kit | 11611976 | GM head bolts for Gen V engines like the LT2; check the part number for yours. |
Donor vehicles with the LT2
Where to find an LT2 at the junkyard: 1 vehicle application below. Confirm it from the RPO sticker in the glovebox or the 8th VIN digit.
| Vehicle | Years |
|---|---|
| Chevrolet Corvette C8 | 2020–2026 |