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LY6 6.0L engine: specs, donor vehicles & swap notes

SpecValue
RPOLY6
FamilyGeneration IV
Years2007–2013
Displacement6.0 L / 364 ci
Horsepower361 hp
Torque385 lb-ft
Bore × stroke4.0 × 3.622 in
Compression9.60:1
Blockiron
AFM/DODNo

Iron/Alum. heads, VVT. Uses L92/LS3-style rectangle-port heads (no sodium exhaust valves)

Specs from secondary sources; GM ratings varied by year and vehicle.

Donor vehicles with the LY6

Where to find one at the junkyard. Confirm with the RPO sticker in the glovebox or the 8th VIN digit.

VehicleYears
Chevrolet Express/GMC Savana 2500/3500/45002008–2009
Chevrolet Silverado 2500HD/3500HD2007–2009
Chevrolet Suburban 25002007–2013
GMC Sierra 2500HD/3500HD2007–2009
GMC Yukon XL 25002007–2013

Next steps

Questions about the LY6