1987 Buick Grand National - Well maintained hardtop with upgrades

Trader history for Jonasterg (0)


After enjoying my Buick for the last few years, and meeting (or re-meeting) a bunch of great folks along the way, it's time to sell my GN. With two little ones at home and a new (time-consuming) job, I don't have enough opportunity to take it out and have fun.

Asking $25,000. Lots of details below, pics coming.

Body Mileage83500
Body BracesTrunk, front frame, under hood
Scan ToolScanmaster G, Powerlogger
GaugesVDO Boost, Water Temp, Oil Pressure
TiresFront: 215-60-15 BFG Radial TA ; Rear: 255-50-15 ET Streets
Air ConditioningYes
Oil FilterWix 51049 & Turbo Saver
Throttle BodyStock
EGRBlock-off plate
PlenumRJC Airflow Distribution Power Plate
TurboTA-55 @ 23 psi
IntercoolerPTE stock location
Downpipe3" Terry Houston Downpipe
ExhaustHooker, 2.5"
Engine0.30 over, forged pistons, ARP main studs, ARP rod bolts
Engine Mileage7500
Spark PlugsAutolite 23 @ 0.030
Plug WiresKirban 8.0 mm
HeadsBuilt, not ported
Cam208-208, 100 lb springs
Injectors60 lb/hr
Fuel PumpTurboTweak TT255LPH
Fuel Press RegAdjustable
InjectionRazor's Alkycontrol PAC
Transmission Mileage1000
TransmissionAnderson-built 200-4R
Line lockYes
Trans CoolerYes
Trans ConverterBillet D5, 3000 stall, anti-balloon plate
PosiYes (G80)
DriveshaftGrease-less yokes, thicker shaft
Driveshaft LoopYes
BracesRJC Rear Motor Brace
Front UCAsTubular 91034394-L, steel bushings
Upper Ball JointsExtended length 106200322LF
Lower Ball JointsStock length 10620039LF
Front LCAsStock, steel bushings
Bump Steer KitNew steering, tie rod to tie rod, including center link
Front SpringsMoog 5658, 530 lbs
Wheel BearingsNew, stock replacement
BrakesPowerStop Z23 Evo Sport pads & rotors; braided SS lines

Car drives beautifully and has a lot left in her. Hate to see it go, but it's just sitting in my garage right now. Still have the original turbo, intercooler, and powermaster unit too.


Pictures here. If there's anything in particular you'd like to see, please let me know.


Quiky One

Active Member
Beautiful car. Who built the motor? Factory crank? Was it turned? What’s the secondary gauge for? Paint looks immaculate. Has it been repainted and cleared?

Thanks, Jason


Previous owner (Dick Walker from Oklahoma) built the motor. Haven't spoken with him for a few years now, but he was well known in the midwest Buick community. Crank is factory, I don't believe it was turned.

Additional work (tuning, turbo, downpipe, alky, transmission, etc) was done by Anderson Performance in Maryland.

Console gages are water temperature & oil pressure. A-pillar gage is boost (I'll get a 2-pod holder and add the Scanmaster G up there soon). Under the hood is a fuel pressure gage.

It hasn't been repainted since I've owned it (2011), and I don't think it was repainted before then... but I could be mistaken. In school, I worked in a detail shop so I've tried to take care of the paint on this car as much as I can.

Hope this helps.

Quiky One

Active Member
Thanks for your reply. Being from the Midwest the name sounds very familiar. I’m 90% sure I met him at a Buick vs. Ford race back in the mid 2000’s.


It is. I've got a few requests for better pics of the hail dings. I'll try to figure out a better way to see them and upload new pics. They're small and hard to photograph.