well the GP and the MC are the same....w bodies..... GP...3.1-liter V6, rated 160 horsepower, went in the base SE sedan. Optional in the SE and standard on Grand Prix GT coupes and sedans was a 195-horsepower, 3.8-liter V6, which later grew to 200 horsepower
3.1-liter V6, rated at 160 horsepower. A dual-overhead-cam 3.4-liter engine, installed in the Monte Carlo Z34 and available in the Lumina, started at 210 horsepower in 1995 and rose to 215 in '96. In '98 that engine was replaced by General Motors'* ohv 3.8-liter V6 rated at 200 horsepower.
as for the GA
A 2.4-liter 4-cylinder, rated at 150 horsepower, went into the SE and SE1, teamed with either a 5-speed manual (not available initially) or 4-speed automatic transmission. A 170-hp V6 (automatic only) went into the SE2 and early GT, and was optional for the SE1. Finally, GT models had a 175-horsepower version of the V6, mated only to 4-speed automatic. SE and SE1 models traded a 150-hp 2.4-liter 4 cyl for a 140-hp 2.2 liter