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Chevrolet 6.2/6.5 Diesel V8 Engine Specs
Bore, stroke, displacement and compression for all 6 Chevrolet 6.2/6.5 Diesel V8 engines, compared side by side. Free spec reference.
At a glance
Displacement 379–395 ci Cylinders 8 Bore 3.980–4.060" Stroke 3.820" Advertised power 130–195 hp Years 1982–1999
Engines in this family
Engine Displacement Bore × Stroke CR HP 6.5 diesel 395 ci 4.06" × 3.82" — — L49 395 ci 4.06" × 3.82" — 155 L56 395 ci 4.06" × 3.82" — 180 L65 395 ci 4.06" × 3.82" — 190–195 6.2 diesel 379 ci 3.98" × 3.82" — — LH6 379 ci 3.98" × 3.82" — 130–145
Factory cars with a 6.2/6.5 Diesel V8
Chevrolet C/K Pickup : 1982, LH6, 130 hp ; 1983, LH6, 130 hp ; 1984, LH6, 130 hp ; 1985, LH6, 130 hp ; 1986, LH6, 130 hp ; 1987, LH6, 130 hp ; 1989, LH6, 140 hp ; 1990, LH6, 140 hp ; 1991, LH6, 140 hp ; 1992, LH6, 140 hp ; 1993, LH6, 140 hp ; 1994, L49, 155 hp ; 1994, L56, 180 hp ; 1995, L49, 155 hp ; 1995, L56, 180 hp ; 1996, L56, 180 hp ; 1997, L56, 180 hp Chevrolet K5 Blazer : 1982, LH6, 130 hp ; 1983, LH6, 130 hp ; 1984, LH6, 130 hp ; 1985, LH6, 130 hp ; 1986, LH6, 130 hp ; 1987, LH6, 130 hp ; 1988, LH6, 130 hp ; 1989, LH6 ; 1990, LH6, 145 hp ; 1991, LH6 ; 1994, L56, 180 hp Chevrolet Suburban : 1982, LH6, 130 hp ; 1983, LH6, 130 hp ; 1984, LH6, 130 hp ; 1985, LH6, 130 hp ; 1986, LH6, 130 hp ; 1987, LH6, 130 hp ; 1988, LH6, 130 hp ; 1989, LH6, 130 hp ; 1990, LH6, 140 hp ; 1991, LH6, 140 hp ; 1994, L65, 190 hp ; 1995, L65, 190 hp ; 1996, L65, 190 hp ; 1997, L65, 190 hp ; 1998, L65, 190 hp ; 1999, L65, 195 hp GMC Jimmy : 1984, LH6, 130 hp ; 1985, LH6, 130 hp ; 1986, LH6, 130 hp ; 1987, LH6, 130 hp ; 1988, LH6 ; 1989, LH6, 130 hp ; 1990, LH6, 145 hp ; 1991, LH6 GMC Sierra 1500 : 1988, LH6, 140 hp ; 1989, LH6, 140 hp ; 1990, LH6, 140 hp ; 1991, LH6, 140 hp ; 1992, LH6, 140 hp ; 1993, LH6, 140 hp ; 1994, L49, 155 hp ; 1994, L56, 180 hp ; 1995, L49, 155 hp ; 1995, L56, 180 hp ; 1996, L56, 180 hp ; 1997, L56, 180 hp ; 1998, L56, 180 hp Chevrolet Tahoe : 1995, L56, 180 hp ; 1996, L56, 180 hp ; 1997, L56, 180 hp ; 1998, L56, 180 hp ; 1999, L56, 180 hp What varies across the family
Stroke is constant at 3.82" across the family — the displacement spread comes from bore, so these share a crank and differ in the block.
4 of 6 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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