 | GM 60-Degree V6 engine: Encyclopedia II - GM 60-Degree V6 engine - Generation I
GM 60-Degree V6 engine - Generation I
The first generation of GM 60° V6 engines featured an iron block and heads with inline valves. This generation started in 1980 and versions were produced through 1996. Two different blocks were developed:
- A transverse engine family for front wheel drive
- A longitudinal engine family for rear wheel drive
GM 60-Degree V6 engine - Transverse
The transverse engines began the 60° family in 1980. Like the rest of the generation I engines, they were updated in 1985 with larger main journals for durability and MPFI and OBD I. Generation I of the transverse engines ended in 1987.
The following vehicles used 2.8 L versions of this engine for which the RPO code is unknown:
- 1982-1985 Oldsmobile Cutlass Ciera
- 1982-1986 Chevrolet Celebrity
- 1982-1986 Pontiac 6000
- 1982-1985 Buick Skylark
The 2.8 L LE2 was the first version of the 60° motor. It was a transverse version produced from 1980 through 1986 for the X-body cars. The standard ("X-code") engine for this line, it used a 2-barrel carburetor. Output was 115 hp (86 kW) and 135 ft·lbf (183 N·m). Bore was 89 mm and stroke was 76 mm.
Applications:
- 1980-1984 Buick Century
- 1980-1984 Oldsmobile Omega
- 1980-1984 Pontiac Phoenix
- 1980-1985 Chevrolet Citation
Introduced in 1981, the 2.8 L LH7 was a High Output ("Z-code") version of the LE2 for the higher-performance X cars like the Chevrolet X-11. It still used a 2-barrel carburetor and produced 140 hp (104 kW) and 145 ft·lbf (197 N·m). The LH7 was replaced after 1984 with the MFI L44.
Applications:
- 1982-1984 Buick Century
- 1982-1984 Oldsmobile Omega
- 1982-1984 Pontiac Phoenix
- 1982-1985 Chevrolet Citation X-11
The L44 was produced from 1985 to 1988. It used MFI and was a High Output engine for the Pontiac Fiero.
The LB6 was produced from 1985 to 1990. It used electronic fuel injection and was a High Output transverse version.
GM 60-Degree V6 engine - Longitudinal
The longitudinal versions were quite different from the transverse engines on which they were based. This group appeared in 1982 with the LC1 and LR2 and never added the aluminum heads of the Generation II motors.
Like the rest of the family, larger journals appeared in 1985, along with MPFI for the F-body LB8 version. TBI was added for the truck version in 1986.
A 3.1 L version was added in 1990 with an 8 mm longer stroke, and a 3.4 L appeared for 1993 with a 92 mm bore and SFI. Production of the 2.8 L and 3.1 L (Isuzu) engines ended in 1994. Production ended for all longitudinal 60° V6es in 1996, though GM's performance parts division continued production of a related crate engine after 1999.
The longitudinal LC1 was produced from 1982 to 1984. It is a 2-barrel High Output version for the F-body cars. Output was 102 hp (76 kW) and 145 ft·lbf (197 N·m). It was replaced by the LB8 for 1985.
Applications:
- 1982-1984 Chevrolet Camaro
- 1982-1984 Pontiac Firebird
The longitudinal LR2 was a truck version produced from 1982 to 1990. It used a 2-barrel carburetor and produced 115 hp (86 kW) and 150 ft·lbf (203 N·m).
Applications:
- 1982-1986 Chevrolet S-10/Chevrolet S-10 Blazer
- 1982-1986 GMC S-15/GMC S-15 Jimmy
- 1984-1986 Jeep Cherokee
- 1986 Jeep Comanche
The longitudinal LL1 was a high-output version of the LC1 produced in 1983 and 1984. It was an optional ("L-code") engine on the Pontiac Firebird with 125 hp (93 kW).
Applications:
- 1983-1984 Pontiac Firebird
The LB8 replaced the LC1 in 1985 was produced until 1989. It used milti-port fuel injection and was made for longitudinal mounting. Output was 135 hp (101 kW) and 165 ft·lbf (224 N·m).
Applications:
- 1985-1990 Chevrolet Camaro
- 1985-1989 Pontiac Firebird
- 1988-1989 Oldsmobile Cutlass Supreme
The LL2 was produced from 1982 to 1983. Another LL2 was produced from 1990 to 1993.
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 Adapted from the Wikipedia article "Generation I", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki |
