The LG5 (“V-code”) was a special 3.1 L (3,135 cc) turbocharged engine produced with McLaren for the 19 model years. The two versions were one that could run M85 and one that could run E85. The L64 (“W-code”) was introduced in 1991 as flexible-fuel version of the 3.1 L (3,135 cc). mid-1989–mid-1993 Oldsmobile Cutlass Supreme.1988–1991 Pontiac 6000 (Introduced on AWD STE only in 1988-89, became available for other models in 1990 to replace the 2.8 V6).It was produced until 1994 (1996 for the Mexican market) and was exported in some models. It featured a more advanced multiport fuel injection. The LH0 (“T-code”) was introduced in 1988 on the Pontiac 6000 STE AWD. The 2.8 L (2,837 cc) 60° V6 was used in these vehicles:Ī 3.1-L engine in a 1990 Chevrolet Beretta LH0 Production of OHV Generation II engines ended in 1994 after the introduction of the Generation III in 1993. An even higher displacement DOHC 3.4 L (3,350 cc) LQ1 was also developed, and eventually, the new GM High Value engine family followed.
MPFI was used on both, and a full-production turbo version was available on the 3.1 L (3,135 cc). It was produced simultaneously with the 2.8 L (2,837 cc) in various compact and midsized vehicles until 1990, when the 2.8 L (2,837 cc) was dropped. The next year, Chevrolet introduced a full-production long-stroke 3.1 L 191.3 cu in (3,135 cc) version in the Pontiac 6000 STE AWD, with a89 mm (3.5 in) bore and 84 mm (3.31 in) stroke compared to the 2.8 which shared the same bore, however with a 76 mm (2.99 in) in stroke. It was produced exclusively for transverse, front-wheel drive use. It used aluminum heads with splayed valves and an aluminum front cover. The second generation, still 2.8 litres (2,837 cc), was introduced in 1987.
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