LeSabre — H-body (1986–1991)

150 hp; Wikipedia's LeSabre infobox gives the slash form "LG2/LG3" and its Buick V6 engine article lists the LeSabre for 1986–1987 under a combined "LG2/LG3" heading, so neither names LG3 for this car (a slash form names neither code); gnttype.org's 1986 and 1987 Buick VIN tables each print the 3.8L V6 SFI, engine option code LG3, for the LeSabre Custom and Limited, but the two LeSabre blocks print the same engine cell and differ only in body type and a restraint field, so they are one source; the 1986 NICB manual prints a 3.8L V6 fuel-injected engine with VIN 3 but no RPO codes

125 hp; the standard engine for 1986 (Wikipedia's LeSabre article), which also dates it with the Buick V6 engine article's LeSabre list (1986 only); gnttype.org's tables print LN7 only for the Somerset, not the LeSabre, so no second source

165 hp in 1988, 170 hp in 1991 with tuned port injection; replaced the optional 3.8 L for 1988 (Wikipedia's LeSabre article); the Buick V6 engine article lists the LeSabre for 1988–1991, but a second Wikipedia article is not independent; gnttype.org's VIN tables end at 1987 and the NICB manuals print no RPO codes