Skyhawk — J-body (1982–1989)

the standard engine, 88 hp; Wikipedia's Skyhawk and 122 engine articles give it to the Skyhawk for 1982 only; the VIN letter is from the 1982 NICB manual, which prints no RPO codes

the Brazilian-built overhead-cam four, 84 hp, optional in 1982; Wikipedia's Skyhawk and Family II engine articles give it to the Skyhawk 1982–1986; gnttype.org's 1984–1985 Buick VIN tables print it for the Skyhawk, a second source (owner ruling, 2026-11-05: a T3 page that names the code for the Skyhawk, with Wikipedia dating every year) (as O=LH8; the VIN letter is the digit 0, as the 1982 NICB manual prints it)

replaced the 1.8 L OHV engine for 1983, 86 hp (88 hp for 1986, Wikipedia); Wikipedia's Skyhawk and 122 engine articles give it to the Skyhawk 1983–1986; gnttype.org's 1984–1985 Buick VIN tables print it for the Skyhawk, a second source (owner ruling, 2026-11-05: a T3 page that names the code for the Skyhawk, with Wikipedia dating every year)

150 hp; Wikipedia: optional on the T-Type, two-door bodies only, and not with the five-speed manual (1984); Wikipedia's Skyhawk and Family II engine articles give it to the Skyhawk 1984–1986; gnttype.org's 1984–1985 Buick VIN tables print it for the Skyhawk, a second source (owner ruling, 2026-11-05: a T3 page that names the code for the Skyhawk, with Wikipedia dating every year)

96 hp; Wikipedia's Skyhawk and Family II engine articles give it to the Skyhawk 1987–1988; gnttype.org's 1987 Buick VIN table prints it for the Skyhawk (a second source (owner ruling, 2026-11-05: a T3 page that names the code for the Skyhawk, with Wikipedia dating every year))

165 hp; Wikipedia's Skyhawk and Family II engine articles give it to the Skyhawk for 1987 only; gnttype.org's 1987 Buick VIN table prints it for the Skyhawk (a second source (owner ruling, 2026-11-05: a T3 page that names the code for the Skyhawk, with Wikipedia dating every year))

88 hp in 1987 and 90 hp in 1989, when it was the only engine (Wikipedia); Wikipedia's Skyhawk article dates it 1987 and 1989; gnttype.org's 1987 Buick VIN table prints it for the Skyhawk; 1988 is left out because the Skyhawk article says the OHV engine was not offered for 1988, the 1989 NICB Buick table prints VIN 1 in its 1988 column, and Wikipedia's 122 engine article gives the Skyhawk 1987–1989; the 1989 Cavalier kit is the second source (a Skyhawk source names the code and dates both years); shared J-body code; cited from the Chevrolet Cavalier kit (1989)

matched to the unit by meaning: Wikipedia's Skyhawk article names an optional five-speed manual (not with the 1984 turbo T-Type) and a Getrag 282 five-speed in its infobox, but prints no code; 1988 is left out because no listed kit page heads the code; shared J-body code; cited from the Chevrolet Cavalier kit

GM engineering code on the Cavalier power-team pages, the unit the order guides sell as MX1; matched to the Skyhawk's unit by meaning: Wikipedia's Skyhawk article names the 3 speed Turbo-Hydramatic 125C in its infobox but prints no code; each page prints its own model year (1986, 1987, 1989); the kit's power-team line for the 2.0 L engine reads "Avail (MD9)" in 1986 and 1987 and "Optional Hydramatic (MD9)" for the LL8 in 1989; 1984–1985 and 1988 are left out because no listed kit page heads the code on a single-condition line for those years; shared J-body code; cited from the Chevrolet Cavalier kit

the unit behind the MM5 order code, listed as standard with the 2.0 L LL8 (Daikin clutch); matched to the Skyhawk's unit by meaning: Wikipedia's Skyhawk article names a five-speed manual for 1989 but prints no code; the Cavalier V6 unit MG2 (same page group) is not listed because the Skyhawk had no V6; shared J-body code; cited from the Chevrolet Cavalier kit; the page prints its model year, 1989

matched to the unit by meaning: Wikipedia's Skyhawk article names the 3 speed Turbo-Hydramatic 125C automatic in its infobox, and its THM 125 article gives the unit to the J-body, but neither prints a 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