LT5 6.2L engine: specs, donor vehicles & swap notes
The LT5 is a 6.2 L aluminum-block Generation V engine built 2019, rated 755 hp. It came in 1 vehicle application, including Chevrolet Corvette ZR1. Things to know: it has variable valve timing.
| Spec | Value |
|---|---|
| RPO | LT5 |
| Family | Generation V |
| Years | 2019 |
| Displacement | 6.2 L / 376 ci |
| Horsepower | 755 hp |
| Torque | 715 lb-ft |
| Bore × stroke | 4.065 × 3.622 in |
| Compression | 10.00:1 |
| Block | aluminum |
| AFM/DOD | No |
| Reluctor | 58x |
| Throttle | Drive-by-wire |
| Stock cam | Duration 200°/207° @.050 in. int./exh.; valve lift 0.551"/0.524" int./exh.; 116.5° LSA; dual-equal VVT phasing. |
| Firing order | 1-8-7-2-6-5-4-3 |
- Charge air cooler air-lock after service (reduced performance, P0300 misfire). Fix: Drain and fill the charge air cooling system using vacuum-fill special tools (GM bulletin 18-NA-088).
- Direct-injection intake valve carbon buildup. Fix: Walnut-blast intake valves and ports; quality fuel and frequent oil changes slow buildup.
Aluminum, supercharger, VVT, hybrid port/direct injection, dry sump
The LT5 specs above are not yet confirmed against GM documents; GM ratings varied by year and vehicle.
How the LT5 differs from the other 6.2 L Gen V engines
The LT5 is one of the six 6.2 L Gen V engines we list: L86, L87, LT1, LT2, LT4, LT5. From our engine table:
- No AFM. The L86, L87, LT1, LT2, LT4 have it, so the LT5 is the easier cam-swap candidate of the group.
- Compression 10.00:1, tied with the LT4 for the lowest of the group.
- Up to 755 hp from the factory, the most of the six 6.2 L Gen V engines we list.
- Variable valve timing. Also on the L86, L87, LT1, LT2, LT4.
- Built 2019.
Swapping the LT5: what to plan for
- Computer: the LT5 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.
- Drive-by-wire throttle: plan on the pedal and throttle body that match the LT5 and its computer.
- 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.
- 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.
Refresh parts for the LT5
From our Gen V refresh list, the parts that are specific to the LT5. 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.
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| Part | GM part # | Why for this engine |
|---|---|---|
| GM Gen V LT knock sensor 12623095 | 12623095 | Gen V knock sensor, as on the LT5. |
| GM Gen V LT camshaft position sensor 12623093 | 12623093 | Gen V cam sensor for the LT5. |
| GM Gen V LT crankshaft position sensor 12669636 | 12669636 | Gen V crank sensor for the LT5. |
| OEM-style LT Gen 5 cylinder head bolt kit | 11611976 | GM head bolts for Gen V engines like the LT5; check the part number for yours. |
Donor vehicles with the LT5
Where to find an LT5 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 ZR1 | 2019 |
Buying a used LT5
A used LT5 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 before you buy.