Engine, 6.0L V8, sequential fuel injection, gaseous (CNG and gasoline), hardened valves and valve seats

Years 2014–19 Models 3 Factory citations 5

Also described as Engine, LPG/CNG, 8 cylinder, V8, 6.0L, sequential fuel injection, Gen 1, GMNAEngine, 6.0L V8, sequential fuel injection, gaseous, hardened valves and valve seats

Also documented for Buick Chevrolet

Documented applications

Savana — GMT610 (2003–2027)

2014–2018 Factory-verified

GM factory document — 2014 chevrolet gh van elec bbm si brief, p.7.
GM factory document — 2018 chevrolet 18 express savana bodybuilders sm 2017nov06, p.16.

Sierra HD — GMT900 (2007–2014)

2014 Factory-verified

only in: 2500 crew cab; requires FHV and MYD; not E85 compatible

GM factory document — 2014 gmc sierra 2500hd fleet order guide wayback, p.4.

Sierra HD — K2XX (2015–2019)

2015, 2019 Factory-verified

runs on gasoline and compressed natural gas (CNG), not E85 compatible; 360 hp (268 kW) on gasoline, 301 hp (225 kW) at 5000 rpm and 333 lb-ft (452 N-m) at 4200 rpm on CNG; requires MYD, the pickup box (E63) and the bi-fuel CNG system (FHV); the 2019 3500HD guide calls it CNG and LPG capable; 2015 marks: Sierra, SLE, SLT: O; 2019: GM's 2019 Sierra 3500HD order guide

GM factory document — 2015 gmc sierra 2500hd fleet order guide wayback, p.4.
GM factory document — 2019 gmc sierra 3500hd order guide copy gm authority, p.24.

This page aggregates every documented appearance of LC8 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.