- 1991–1993 Factory-verified
Z34 coupe with the LQ1; sold as MM5 in the order guides; 1991 is cited from the transmission page (p.26) and 1992 from the curb-mass page's equipment parenthetical (p.52); the 1991 power-teams page (p.25) and the 1992 weight page (p.55) have no readable model-year field
GM Heritage factory kit — 1991 Chevrolet Lumina, p.26.GM Heritage factory kit — 1992 Chevrolet Lumina, p.52.GM Heritage factory kit — 1993 Chevrolet Lumina, p.73.
M27 Factory-verified
Also documented for OldsmobilePontiac
Documented applications
This page aggregates every documented appearance of M27 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.