Chevrolet K5 Blazer Engines by Year

The full-size Blazer was built on the C/K pickup from 1969 to 1994; it was sold with two-wheel drive as well until 1982. For 1995 it was renamed the Tahoe. The compact S-10 Blazer is a different vehicle.

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

1969–1972: 1969 · 1970 · 1971 · 1972

1973–1991: 1973 · 1974 · 1975 · 1976 · 1977 · 1978 · 1979 · 1981 · 1982 · 1983 · 1984 · 1985 · 1986 · 1987 · 1988 · 1989 · 1990 · 1991

1992–1994: 1992 · 1993 · 1994

1969–1972

The first Blazer offered the 250 six and the 307 and 350 V8s. Ratings are SAE net from 1972.

1969 K5 Blazer engines

Engine	Rated	Offered in
250 inline-six (L22)	155 hp gross	K10 4WD standard six
307 V8 (L14)	200 hp gross	K10 4WD standard V8
350 V8 (LS9)	255 hp gross	K10 4WD optional

1970 K5 Blazer engines

Engine	Rated	Offered in
250 inline-six (L22)	155 hp gross	C10 2WD, K10 4WD, Standard six
307 V8 (L14)	200 hp gross	C10 2WD, K10 4WD, Standard V8
350 V8 (LS9)	255 hp gross	C10 2WD, K10 4WD, Optional

1971 K5 Blazer engines

Engine	Rated	Offered in
250 inline-six (L22)	145 hp gross	C10 2WD, K10 4WD, Standard six
307 V8 (L14)	200 hp gross	C10 2WD, K10 4WD, Standard V8
350 V8 (LS9)	250 hp gross	C10 2WD, K10 4WD, Optional

1972 K5 Blazer engines

Engine	Rated	Offered in
250 inline-six (L22)	110 hp net	C10 2WD, K10 4WD, Standard six
307 V8 (L14)	135 hp net	C10 2WD, K10 4WD, Standard V8
350 V8 (LS9)	175 hp net	C10 2WD, K10 4WD, Optional

1973–1991

The second Blazer added the 400 V8 for 1975–1979, the 305 from 1977, and GM's 6.2 diesel from 1982; the six was dropped after 1982. Several ratings differ from the pickup's because the Blazer often carried heavy-duty emissions equipment.

1973 K5 Blazer engines

Engine	Rated	Offered in
250 inline-six (L22)	100 hp net	C10 2WD, K10 4WD, Standard six
307 V8 (L14)	115 hp net	C10 2WD, K10 4WD, Standard V8

1974 K5 Blazer engines

Engine	Rated	Offered in
350 V8 LS9 2-bbl	145 hp net	C10 2WD, K10 4WD, Standard V8
350 V8 (LS9)	160 hp net	C10 2WD, K10 4WD, Optional

1975 K5 Blazer engines

Engine	Rated	Offered in
250 inline-six (LD4)	105 hp net	C10 2WD, K10 4WD, Standard six
350 V8 (L65)	145 hp net	C10 2WD standard V8
350 V8 (LS9)	160 hp net	K10 4WD standard V8, C10 optional
400 V8 (LF4)	175 hp net	K10 4WD only

1976 K5 Blazer engines

Engine	Rated	Offered in
4.1L / 250 inline-six (LD4)	100 hp net	C10 2WD, K10 4WD, Standard six
5.7L / 350 V8 (LS9)	165 hp net	C10 2WD, K10 4WD, Standard V8
6.6L / 400 V8 (LF4)	175 hp net	K10 4WD only

1977 K5 Blazer engines

Engine	Rated	Offered in
4.1L / 250 inline-six (LD4)	100 hp net	C10 2WD, K10 4WD, Standard six
5.0L / 305 V8 (LG9)	140 hp net	C10 2WD, K10 4WD, Standard V8 (except California)
5.7L / 350 V8 (LS9)	165 hp net	C10 2WD, K10 4WD, Optional
6.6L / 400 V8 (LF4)	175 hp net	K10 4WD only

1978 K5 Blazer engines

Engine	Rated	Offered in
4.1L / 250 inline-six (LD4)	100 hp net	C10 2WD, K10 4WD, Standard six
5.0L / 305 V8 (LG9)	140 hp net	C10 2WD, K10 4WD, Except California
5.7L / 350 V8 (LS9)	—	C10 2WD, K10 4WD, Optional; required in California
6.6L / 400 V8 (LF4)	—	K10 4WD only

1979 K5 Blazer engines

Engine	Rated	Offered in
5.0L / 305 V8 (LG9)	—	C10 2WD, K10 4WD, Except California
5.7L / 350 V8 (LS9)	—	C10 2WD, K10 4WD, Optional; required in California
6.6L / 400 V8 (LF4)	185 hp net	K10 4WD only

1981 K5 Blazer engines

Engine	Rated	Offered in
5.0L / 305 V8 (LG9)	130 hp net	C10 2WD, K10 4WD, Except California
5.7L / 350 V8 (LS9)	—	California only

1982 K5 Blazer engines

Engine	Rated	Offered in
5.0L / 305 V8 (LE9)	165 hp net	C10 2WD, K10 4WD, Except California
5.7L / 350 V8 (LS9)	160 hp net	K10 4WD California only
6.2L / 379 V8 diesel (LH6)	130 hp net	K10 4WD only

1983 K5 Blazer engines

Engine	Rated	Offered in
5.0L / 305 V8 (LE9)	160 hp net	K10 4WD standard (except California)
6.2L / 379 V8 diesel (LH6)	130 hp net	K10 4WD

1984 K5 Blazer engines

Engine	Rated	Offered in
5.0L / 305 V8 (LE9)	160 hp net	K10 4WD standard (except California)
5.7L / 350 V8 (LS9)	165 hp net	K10 4WD California only
6.2L / 379 V8 diesel (LH6)	130 hp net	K10 4WD

1985 K5 Blazer engines

Engine	Rated	Offered in
5.0L / 305 V8 (LE9)	160 hp net	K10 4WD standard (except California)
5.7L / 350 V8 (LS9)	165 hp net	K10 4WD California only
6.2L / 379 V8 diesel (LH6)	130 hp net	K10 4WD

1986 K5 Blazer engines

Engine	Rated	Offered in
5.0L / 305 V8 (LE9)	160 hp net	K10 4WD standard (except California)
5.7L / 350 V8 (LS9)	165 hp net	K10 4WD California only
6.2L / 379 V8 diesel (LH6)	130 hp net	K10 4WD

1987 K5 Blazer engines

Engine	Rated	Offered in
5.0L / 305 V8 (LO3)	170 hp net	V10 4WD standard (except California)
5.7L / 350 V8 (LO5)	210 hp net	V10 4WD optional
6.2L / 379 V8 diesel (LH6)	130 hp net	V10 4WD optional (not California)

1988 K5 Blazer engines

Engine	Rated	Offered in
5.7L / 350 V8 (LO5)	210 hp net	V10 4WD standard
6.2L / 379 V8 diesel (LH6)	130 hp net	V10 4WD optional

1989 K5 Blazer engines

Engine	Rated	Offered in
5.7L / 350 V8 (LO5)	210 hp net	V1500 4WD standard
6.2L / 379 V8 diesel (LH6)	—	V1500 4WD optional (not California)

1990 K5 Blazer engines

Engine	Rated	Offered in
5.7L / 350 V8 (LO5)	210 hp net	V1500 4WD standard
6.2L / 379 V8 diesel (LH6)	145 hp net	V1500 4WD optional (not California)

1991 K5 Blazer engines

Engine	Rated	Offered in
5.7L / 350 V8 (LO5)	210 hp net	V1500 4WD standard
6.2L / 379 V8 diesel (LH6)	—	V1500 4WD optional

1992–1994

The GMT400 Blazer used the 5.7 V8, with a 6.5 turbo diesel for 1994.

1992 K5 Blazer engines

Engine	Rated	Offered in
5.7L / 350 V8 (L05)	210 hp net	K1500 4WD, only engine

1993 K5 Blazer engines

Engine	Rated	Offered in
5.7L / 350 V8 (L05)	210 hp net	K1500 4WD, only engine

1994 K5 Blazer engines

Engine	Rated	Offered in
5.7L / 350 V8 (L05)	210 hp net	K1500 4WD standard
6.5L / 395 V8 diesel (L56)	180 hp net	K1500 4WD optional, automatic only

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