Oldsmobile · 1982-1988

Firenza — J-body (1982–1988)

firenza · firenza brougham · firenza lc · firenza lx · firenza gt

8 option rows 8 RPO codes 7 model years
0% Factory-verified
  • ✓ Factory-verified · 0
  • ● Confirmed · 0
  • ◑ Single-source · 8
  • ⚠ Disputed · 0

Applicable options

Documented RPO codes

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Model year
Firenza — J-body (1982–1988) RPO codes
Code Option Years Notes & factory source Confidence
Engines
L46 1.8 L (112 cu in) L4, OHV, carburetor 1982
the launch engine; Wikipedia's Firenza article (infobox and Engines list) and its 122 engine article give it to the Firenza for 1982 only; the carburetor is a 2-barrel in the merged Skyhawk and Cavalier docs, which Wikipedia's Firenza article does not say
Single-source
LH8 1.8 L L4, SOHC, throttle-body fuel injection 1982–1986
the Brazilian-built overhead-cam four, added during the 1982 model year; Wikipedia's Firenza article (infobox and Engines list) and its Family II engine article give it to the Firenza 1982–1986
Single-source
LQ5 2.0 L (121 cu in) L4, OHV, throttle-body fuel injection 1983–1986
the OHV engine enlarged to 2 liters for 1983; Wikipedia's Firenza article (infobox and Engines list) and its 122 engine article give it to the Firenza 1983–1986
Single-source
LT2 2.0 L (121 cu in) L4, SOHC, throttle-body fuel injection 1987
Wikipedia's Firenza Engines list and its Family II engine article give it 1987–1988, but the article's text says the overhead-cam engine was dropped for 1988, so only 1987, which both print, is claimed
Single-source
LL8 2.0 L (121 cu in) L4, OHV, throttle-body fuel injection 1987–1988
replaced the LQ5; Wikipedia's Firenza article (infobox, Engines list and the 1988 text, which leaves only the OHV four) and its 122 engine article give it 1987–1988; shared J-body code; the 1988 Chevrolet Cavalier kit prints LL8 on a single-condition air conditioning line, a sibling page dated 1988
GM Heritage factory kit — 1988 Chevrolet Cavalier, p.42.
Single-source
LB6 2.8 L (173 cu in) V6, OHV, multiport fuel injection 1985–1987
an option with the GT package from 1985 (Wikipedia); Wikipedia's Firenza article (infobox, text and Engines list) gives it 1985–1987 and says the V6 was dropped for 1988, so 1988 is left out although the 1988 Cavalier kit prints LB6; shared J-body code; cited from the Chevrolet Cavalier kit, whose optional equipment weight pages list it in each year (a V6 optional or standard on some Cavalier lines)
GM Heritage factory kit — 1985 Chevrolet Cavalier, p.35.
GM Heritage factory kit — 1986 Chevrolet Cavalier, p.37.
GM Heritage factory kit — 1987 Chevrolet Cavalier, p.37.
Single-source
Transmissions
MM5 Transmission, 5 speed manual (merchandised order code) 1984–1987
matched to the unit by meaning: Wikipedia's Firenza article names a Getrag 282 five-speed in its infobox and five-speed GT cars for 1984 and 1987 but prints no code; the kit's 1985 line reads "with the L4 engine only"; 1988 is left out because no listed kit page heads the code; shared J-body code; cited from the Chevrolet Cavalier kit
GM Heritage factory kit — 1984 Chevrolet Cavalier, p.11.
GM Heritage factory kit — 1985 Chevrolet Cavalier, p.35.
GM Heritage factory kit — 1986 Chevrolet Cavalier, p.37.
GM Heritage factory kit — 1987 Chevrolet Cavalier, p.37.
Single-source
MX1 Automatic transmission, 3 speed (merchandising code for the THM 125C) 1984, 1986–1987
matched to the unit by meaning: Wikipedia's Firenza article names the 3 speed Turbo-Hydramatic 125 C automatic in its infobox but prints no code; the 1986 page prints MXI (letter I); 1985 is left out because the kit's option line is cut off after MX, and 1988 because no listed kit page heads the code; shared J-body code; cited from the Chevrolet Cavalier kit
GM Heritage factory kit — 1984 Chevrolet Cavalier, p.11.
GM Heritage factory kit — 1986 Chevrolet Cavalier, p.37.
GM Heritage factory kit — 1987 Chevrolet Cavalier, p.37.
Single-source

Source document: oldsmobile/firenza-j-body.md. Rows marked — record an option the factory offered whose RPO code is not documented in the consulted sources.