Buick V6 Specs: 3.799 x 3.402 in

Buick V6 specs: 3.799 x 3.402 in (96.5 x 86.4 mm) bore and stroke, shared by all 3 versions. Displacement, compression and factory ratings, plus rod ratio.

At a glance

Displacement	231 ci
Cylinders	6
Bore	3.799"
Stroke	3.402"
Compression	8.0:1
Advertised power	105–276 hp
Years	1977–1987

Engines in this family

Engine	Displacement	Bore × Stroke	CR	HP
Buick V6 · 3.799" × 3.402" · 8:1	231 ci	3.7992" × 3.4016"	8:1	110–276
LD5	231 ci	3.7992" × 3.4016"	—	105–115
LC2	231 ci	3.7992" × 3.4016"	—	245–276

Factory cars with a Buick V6

• Oldsmobile Cutlass: 1977, LD5, 105 hp; 1978, LD5, 105 hp; 1979, LD5, 115 hp; 1980, LD5, 110 hp; 1981, LD5, 110 hp; 1982, LD5, 110–115 hp; 1983, LD5, 110 hp; 1984, LD5, 110 hp; 1985, LD5, 110 hp; 1986, LD5, 110 hp; 1987, LD5, 110 hp
• Pontiac Firebird: 1977, LD5, 105 hp; 1979, LD5, 105–115 hp; 1980, LD5, 115 hp; 1981, LD5, 110 hp
• Pontiac LeMans: 1977, LD5, 105 hp; 1979, LD5, 115 hp; 1980, LD5, 115 hp; 1981, LD5, 110 hp
• Buick Regal: 1978, LD5, 105 hp; 1979, LD5, 115 hp; 1980, LD5, 110 hp; 1981, LD5, 110 hp; 1982, LD5, 115 hp; 1983, LD5, 112 hp; 1984, LD5, 110 hp; 1985, LD5, 110 hp; 1986, LD5, 110 hp; 1987, LD5, 110 hp; 1987, LC2, 245 hp; 1987, LC2, 276 hp
• Buick Skylark: 1978, LD5, 105 hp
• Chevrolet El Camino: 1978, LD5, 105 hp; 1979, LD5, 115 hp; 1980, LD5, 110 hp; 1981, LD5, 110 hp; 1984, LD5, 110 hp
• Chevrolet Monte Carlo: 1978, LD5, 105 hp; 1979, LD5 / LC6, 115 hp; 1980, LD5, 110 hp; 1981, LD5, 110 hp; 1982, LD5, 110 hp; 1984, LD5, 110 hp
• Pontiac Grand Prix: 1979, LD5, 105 hp; 1980, LD5, 110 hp; 1981, LD5, 110 hp; 1982, LD5, 110 hp; 1983, LD5, 110 hp; 1984, LD5, 110 hp; 1986, LD5, 110 hp; 1987, LD5, 110 hp
• Chevrolet Camaro: 1980, LD5, 110 hp; 1981, LD5, 110 hp
• Chevrolet Caprice: 1980, LD5, 110 hp; 1981, LD5, 110 hp; 1982, LD5, 110 hp; 1983, LD5, 110 hp; 1984, LD5, 110 hp
• Chevrolet Impala: 1980, LD5, 110 hp; 1981, LD5, 110 hp; 1982, LD5, 110 hp; 1984, LD5, 110 hp

What varies across the family

All are oversquare — bore larger than stroke, which favours revs over low-end torque.

Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.

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