Chevrolet TrailBlazer Engines by Year

The TrailBlazer replaced the Blazer as Chevrolet's midsize SUV for 2002. Every one had the 4.2 inline six as its base engine; the three-row EXT added a 5.3 V8, and the TrailBlazer SS used the Corvette's 6.0 LS2. The name returned for 2021 on a small front- and all-wheel-drive crossover with 1.2 and 1.3 turbocharged three-cylinders.

Pick a year to see every engine offered that model year, with its code, rated horsepower and the trims it came in. Each engine links to its full specs.

Jump to a year

TrailBlazer (2002–2009): 2002 · 2003 · 2004 · 2005 · 2006 · 2007 · 2008 · 2009

Crossover (2021–2026): 2021 · 2022 · 2023 · 2024 · 2025 · 2026

TrailBlazer (2002–2009)

The 4.2 inline six, the 5.3 V8 and the 6.0 LS2.

2002 TrailBlazer engines

Engine	Rated	Offered in
4.2L / 256 inline-six (LL8)	—	2WD, 4WD, TrailBlazer, EXT

2003 TrailBlazer engines

Engine	Rated	Offered in
4.2L / 256 inline-six (LL8)	275 hp net	2WD, 4WD, TrailBlazer, EXT, Standard
5.3L / 325 V8 (LM4)	290 hp net	EXT only, 2WD, 4WD, Optional

2004 TrailBlazer engines

Engine	Rated	Offered in
4.2L / 256 inline-six (LL8)	275 hp net	2WD, 4WD, TrailBlazer, EXT, Standard
5.3L / 325 V8 (LM4)	290 hp net	EXT only, 2WD, 4WD, Optional

2005 TrailBlazer engines

Engine	Rated	Offered in
4.2L / 256 inline-six (LL8)	275 hp net	2WD, 4WD, TrailBlazer, EXT, Standard
5.3L / 325 V8 (LH6)	—	EXT only, 2WD, 4WD, Optional

2006 TrailBlazer engines

Engine	Rated	Offered in
4.2L / 256 inline-six (LL8)	—	2WD, 4WD, TrailBlazer, EXT, Standard
5.3L / 325 V8 (LH6)	—	TrailBlazer, EXT, 2WD, 4WD, Optional
6.0L / 364 V8 (LS2)	395 hp net	SS only, 2WD, AWD

2007 TrailBlazer engines

Engine	Rated	Offered in
4.2L / 256 inline-six (LL8)	—	2WD, 4WD, Standard
5.3L / 325 V8 (LH6)	—	LS, LT, 2WD, 4WD, Optional
6.0L / 364 V8 (LS2)	395 hp net	SS only, 2WD, AWD

2008 TrailBlazer engines

Engine	Rated	Offered in
4.2L / 256 inline-six (LL8)	285 hp net	2WD, 4WD, Standard
5.3L / 325 V8 (LH6)	—	LT, 2WD, 4WD, Optional
6.0L / 364 V8 (LS2)	390 hp net	SS only, 2WD, AWD

2009 TrailBlazer engines

Engine	Rated	Offered in
4.2L / 256 inline-six (LL8)	285 hp net	LT, 2WD, 4WD, Standard
6.0L / 364 V8 (LS2)	390 hp net	SS only, 2WD, AWD

Crossover (2021–2026)

The 1.2 and 1.3 turbo three-cylinders.

2021 TrailBlazer engines

Engine	Rated	Offered in
1.2L / 73 inline-three turbo (LIH)	137 hp net	L, LS, LT (FWD, CVT)
1.3L / 79 inline-three turbo (L3T)	155 hp net	LS/LT AWD, LT FWD (optional), RS, ACTIV

2022 TrailBlazer engines

Engine	Rated	Offered in
1.2L / 73 inline-three turbo (LIH)	137 hp net	L, LS, LT (FWD, CVT)
1.3L / 79 inline-three turbo (L3T)	155 hp net	LS/LT AWD, LT FWD (optional), RS, ACTIV

2023 TrailBlazer engines

Engine	Rated	Offered in
1.2L / 73 inline-three turbo (LIH)	137 hp net	L, LS, LT (FWD, CVT)
1.3L / 79 inline-three turbo (L3T)	155 hp net	LS/LT AWD, LT FWD (optional), RS, ACTIV

2024 TrailBlazer engines

Engine	Rated	Offered in
1.2L / 73 inline-three turbo (LIH)	137 hp net	L, LS, LT (FWD, CVT)
1.3L / 79 inline-three turbo (L3T)	155 hp net	LS/LT AWD, LT FWD (optional), RS, ACTIV

2025 TrailBlazer engines

Engine	Rated	Offered in
1.2L / 73 inline-three turbo (LIH)	137 hp net	L, LS, LT (FWD, CVT)
1.3L / 79 inline-three turbo (L3T)	155 hp net	LS/LT AWD, LT FWD (optional), RS, ACTIV

2026 TrailBlazer engines

Engine	Rated	Offered in
1.2L / 73 inline-three turbo (LIH)	137 hp net	L, LS, LT (FWD, CVT)
1.3L / 79 inline-three turbo (L3T)	155 hp net	LS/LT AWD, LT FWD (optional), RS, ACTIV

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