In response to rising gas prices, a larger 252 cu in (4.1 L) version of the 3.8 L LD5 V6 was produced from 1980 through 1984 and marketed as an alternative to a V8. including Cadillac which offered the "big" Buick V6 in several models from 1980 to 1982 as a credit option to the troublesome V8-6-4 engine used in 1981 and early versions of the aluminum-block Cadillac HT-4100 V8 introduced in 1982.
It was also the standard powerplant in the front-drive Riviera and Olds Toronado from 1981 to 1984.
|Displ.||Type||Opt. Code||VIN Code||Bore (in.)||Stroke (in.)||Aspiration||Fuel Del.||Comp.Ratio||Torque / RPM||H.P. / RPM|
Firing Order 1-6-5-4-3-2
Distributor Rotation is Clockwise
|Engine||Timing||Comp PSI||Idle Spd.||S plug/Gap*|
|231ci/3.8L||15o BTDC1,2||100min 20% var||650 in Dr.||RS-46SZ/.060||A329C|