Re: 1986 vs. 1987 Grand National
87's technically have more power even though its probably not noticeable. The reason for being higher priced is because it's the last model year. Id find maybe 3-5 different GN's being sold in your area ( if you do not want to deal with a long distance sale ) and look/drive all of them before making a decision.
81 Sport Coupe -- 462 Buick, zero decked, SRP Forged Pistons with valve reliefs, Scott Brown cam, 69cc Bulldog heads w/ 1.6 KB roller rockers, SP1 intake topped off with 950 Quickfuel Black Diamond Carb. GN serpentine setup w/ hydroboost assisted discs. 8.5 30 spline yukon posi w/ 3.23 richmond gears and 30 spline moser axles. CK performance custom built hybrid AOD and custom 3500 Pro Torque convertor.