Selling My Grand National 87, owned it for eight years, it was enjoyable, but also lots of efforts, throughout the time, working throughout numerous of projects on this car, as an enthusiast. Had done a ton of research to find and install best aftermarket products, invested nearly 28 thousands in parts, have the receipts. This GN is unique in its model, it features power windows, power lock-and-unlock doors, and rare astro roof, about 2560 units came with this option. I had modified the car for higher performance yet keeping it stock for street use. The car may require work on paint along replacing weatherstrip seals, and step up for standalone ProEFI or XFI tune (now running on older Accel gen 6 after-market ecu), drives really fast though. All fluids newly changed due to modified setups, coolant fluid, transmission, engine, brakes (few months ago). Changed battery for Optima 34/78 (1000 cold amp cranking power) and 200-amp alternator. And also, installed with new AC compressor and condenser, and AC accumulator, converted and charged with R134a, cools nice. Some upgrades had been installed when I bought the car, which were to the engine, like hardened piston push rods. Modifications that I have worked on, and what were installed before:
For Appearance:- CCW wheels (gloss black centers with polished lips, classic street). Sizes: Front 245/45/17, Rear 275/40/17. Nittos NT555 tires- JW Speakers chrome bezel LED headlights, low and high beams- GNX style gauges cluster (already upgraded)- RJC billet aluminum razor racing 8-piece pulleys set, weight reduction over 9 lbs, rotating weight reduction removing 95 lbs- SpoolFool rear and front bumper fillers- Grand National logo black valve covers (no longer in existence), hard to find- 9 piece GM G-body trunk carpet (gray)- Radiator and vacuum hoses replaced for siliconesSuspension/ body/ braking- Front and rear double adjustable coil-over shocks from Vikings. Spring rates - 450 lbs front, 150 lbs in the rear shocks, and UMI rear tower brace for rear shocks reinforcement- UMI 1.250" solid front swaybar, and 1" solid rear swaybar- Boxed UMI 2" rear lower control arms with polyurethane and roto-joint Delrin bushings; and, Spohn rear upper tubular adjustable control arms with roto-joints- Polyurethane body mounts, from Energy Suspension- UMI upper and lower A-arms with Delrin bushings, and new GM Metric spindles (stock height)- Spohn performance steering front-end rebuilt kit- Tallon hydroboost brake system conversion, Wilwood master cylinder and proportioning brake valve- Wilwood six-piston front 12.19" disc brakes Forged DynaPro Big Brakes, and rear 12.19" disc brakes 4-piston forged Dynalite Pro-series; also installed emergency brake from Classic Performance (from Summit)- Rear seat X-braces from Kirban- Front/rear aluminum bumper supportsTransmission/ drivetrain- Transmission 200-4R model, upgraded to stage 2 by Jimmy's High Performance transmission, in Wisconsin Union Grove- Polyurethane transmission mount on the custom billet aluminum bracket support, and transmission cross member poly mounts- Hughes transmission 4" depth, hold extra 2 quarts-Derale Atomic fan forced cooler, 500 cfm, and Derale fin and plate type 9000 series- Dennys Nitrous 3" driveshaft Pro package NR-3Pro- Eaton limited disc slip posi unit, 400 lbs spring-loaded, 28 spline, with new carrier bearings- Richmond ring gear and pinion gear, 3.90/1 ratio- Moser C-clip type 28-spline axles with new axle bearings- TA Performance 8.5" 10-bolt rear-end aluminum coverPerformance - intake/ exhaust/ cooling- Twin fan aluminum radiator combo, from GN1 Performance- 3" downpipe with external 46mm wastegate, and headers ( all ceramic coated)- 3" dual stainless steel exhaust system (already installed)- QTP 3" electric cutout exhaust- RJC polished aluminum 3" intercooler pipes, and polished 4" aluminum turbo inlet pipe- RJC intercooler IC-325- Turbonetics CTP 60 series turbo with ball bearingsEngine - previous work done- 70mm air plenum throttle body with power plate- ANS Performance ported intake manifold- Engine bored to 3.820, high performance Moly 3.820 piston rings and pistons, hardened pushrods, PTE 218 camshaft, 869-12 hydraulic race lifters, engine custom receiver groove- Rollmaster timing chain- 12-point ARP head studs- DEKA 55 lbs injectors, model #3102- Billet aluminum adjustable pressure regulator- 9.5" torque converter- Two 255 LPH Walbro fuel pumps
Flaws: a crack on the upper dashboard, and a small dent on the left side door
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