Buick Century Engines by Year

This page covers the front-drive A-body Century of 1982–1996, the longest-lived of the GM A-bodies. It used fours, Buick's own 3.0, 3.3 and 3.8 V6s, Chevrolet's 2.8 and 3.1, and a diesel V6. The Chevrolet Celebrity and Pontiac 6000 were its twins.

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.

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Century (1982–1996): 1982 · 1983 · 1984 · 1985 · 1986 · 1987 · 1988 · 1989 · 1990 · 1991 · 1992 · 1993 · 1994 · 1995 · 1996

Century (1982–1996)

Fours, V6s and a diesel V6.

1982 Century engines

Engine	Rated	Offered in
2.5L / 151 inline-four (LR8)	90 hp net	Century Custom, Century Limited
3.0L / 181 V6 (LK9)	110 hp net	Century (option)
4.3L / 262 V6 diesel (LT7)	85 hp net	Century (option)

1983 Century engines

Engine	Rated	Offered in
2.5L / 151 inline-four (LR8)	90 hp net	Century Custom, Century Limited
3.0L / 181 V6 (LK9)	110 hp net	Century (option), Century T Type
4.3L / 262 V6 diesel (LT7)	85 hp net	Century (option)

1984 Century engines

Engine	Rated	Offered in
2.5L / 151 inline-four (LR8)	92 hp net	Century Custom, Century Limited
3.0L / 181 V6	—	Century (option)
3.8L / 231 V6	—	Century T Type, Century (option)
4.3L / 262 V6 diesel (LT7)	85 hp net	Century (option)

1985 Century engines

Engine	Rated	Offered in
2.5L / 151 inline-four (LR8)	92 hp net	Century Custom, Century Limited
3.0L / 181 V6	—	Century (option)
3.8L / 231 V6	—	Century T Type, Century (option)
4.3L / 262 V6 diesel (LT7)	85 hp net	Century (option)

1986 Century engines

Engine	Rated	Offered in
2.5L / 151 inline-four (LR8)	92 hp net	Century Custom, Century Limited
2.8L / 173 V6 (LE2)	112 hp net	Century (option)
3.8L / 231 V6 (LG3)	150 hp net	Century T Type, Century (option)

1987 Century engines

Engine	Rated	Offered in
2.5L / 151 inline-four (LR8)	98 hp net	Century Custom, Century Limited
2.8L / 173 V6 (LB6)	125 hp net	Century (option)
3.8L / 231 V6 (LG3)	150 hp net	Century (option)

1988 Century engines

Engine	Rated	Offered in
2.5L / 151 inline-four (LR8)	98 hp net	Century
2.8L / 173 V6 (LB6)	125 hp net	Century (option)
3.8L / 231 V6 (LG3)	150 hp net	Century (option)

1989 Century engines

Engine	Rated	Offered in
2.5L / 151 inline-four (LR8)	110 hp net	Century
3.4L / 204 V6 (LG7)	160 hp net	Century (option)

1990 Century engines

Engine	Rated	Offered in
2.5L / 151 inline-four (LR8)	110 hp net	Century
3.4L / 204 V6 (LG7)	160 hp net	Century (option)

1991 Century engines

Engine	Rated	Offered in
2.5L / 151 inline-four (LR8)	110 hp net	Century
3.4L / 204 V6 (LG7)	160 hp net	Century (option)

1992 Century engines

Engine	Rated	Offered in
2.5L / 151 inline-four (LR8)	110 hp net	Century
3.4L / 204 V6 (LG7)	160 hp net	Century (option)

1993 Century engines

Engine	Rated	Offered in
2.2L / 133 inline-four (LN2)	110 hp net	Century
3.4L / 204 V6 (LG7)	160 hp net	Century (option)

1994 Century engines

Engine	Rated	Offered in
2.2L / 133 inline-four (LN2)	120 hp net	Century, Century Special
3.1L / 191 V6 (L82)	160 hp net	Century (option), Century wagon

1995 Century engines

Engine	Rated	Offered in
2.2L / 133 inline-four (LN2)	120 hp net	Century, Century Special
3.1L / 191 V6 (L82)	160 hp net	Century (option), Century wagon

1996 Century engines

Engine	Rated	Offered in
2.2L / 133 inline-four (LN2)	120 hp net	Century, Century Special
3.1L / 191 V6 (L82)	160 hp net	Century (option), Century wagon

Working on one of these engines?

• Engine displacement from bore and stroke
• Static and dynamic compression ratio
• Which camshaft for your build
• What size carburetor
• Horsepower to torque at any RPM
• Torque converter stall speed

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