87 GN Value

87TIGN

Death by boost
Joined
Aug 21, 2006
Not sure if this is the correct place to post this (maybe in the for sale section??) if it isn't please feel free to move it to were it needs to be.

Ok guys, I think I’m ready to sell my 1987 Grand National, and I’m wondering if you guys could help give me a ballpark appraisal, so I know how much to ask for.
The car has 85,xxx original chassis miles, the interior is in excellent condition, the engine and transmission have been completely rebuilt, the exterior is in decent shape, but is in need of minor body work and new paint. I’ll list out all of the parts and upgrades that I have done, keep in mind I have approximately $25,000 in upgrades (not including original vehicle cost.) I love the car but I am looking for an 03 Z06 as a new project.
Engine:
Rebuilt at 82,000 miles
- RJC deep sump 7 qt race pan
- RJC engine girdle with crank scraper
- Stock oil pump with spacer
- Polyurethane motor mounts
- Stock crank, 0.020” over (magnafluxed)
- Clevite main bearings
- Stock crank caps, machined to fit girdle
- Stock rods, 0.020” over (magnafluxed, shot penned)
- Clevite rod bearings, 0.020” over
- Stock block, linehoned, punched 0.030” over (magnafluxed, deck surfaced)
- TRW speed pro forged aluminum pistons, 0.040” over (8.5:1 compression ratio [?])
- Stock iron heads (fully ported and polished)
o Intake bowls ported (unsure of size at this time)
o Titanium valve seats
o Titanium intake and exhaust valves
o New valve seals
o Port matched to intake manifold
o Port matched to exhaust manifold
o Machined for beehive springs
o All new spring hard wear
- Comp cam roller camshaft (I believe 0.516”/0.516” lift 210/215 duration)
- Comp cam roller lifters
- Comp cam roller pushrods
- Stock stamped steel rockers
- Comp cam beehive double springs
- Stock intake manifold, port matched
- 60 lb mototron injectors
- Stock fuel rail
- RJC plenum spacer
- Stock plenum
- Stock throttle body
- New coil pack
- New ignition module
- MSD 8.5mm plug wires
- AC Delco CR42TS plugs
- PTE60 turbo with TA49 exhaust housing
o Sleeve bearings
o Stock waste gate
o RJC boost controller
- 3” TA performance down pipe, and cut out
- RJC full front mount intercooler with piping
- Full 3” big mouth fender well intake
- New stock MAF
- Stock radiator
- Stock accessories and pulleys
- 160 degree thermostat
- New IAC valve
- New TPS sensor
- New coolant temp sensor
- New crank sensor
- Stock cam sensor, with prong replacement
- Stock front cover, with stock oil pump
- New IAT sensor
- New knock sensor
- New ’87 Monte Carlo brake booster
- New ’87 Monte Carlo brake reservoir
- Used ’87 Monte Carlo brake pedal set-up
- New Delco oxygen sensor
- New Casper’s engine wiring harness
- Stock exhaust manifolds and cross over pipe, fully ported
- Hooker 2.5” cat-back exhaust
- New power steering pump hoses (hard and soft lines)
- New AC compressor (R134 retro, not charged)
- New AC receiver dryer (system not charged, but closed to keep moisture out)
- Razor alky injection system
- New stock ECM
- Turbo Tweak Alky chip
- New REMflex exhaust gaskets (manifolds and turbo)
- RJC bulletproof head gasket
- All bolts and studs are ARP (rods, main caps, heads, etc.)
- Newer Valvoline full synthetic brake flush
- Oil changed every 1,500 miles, using Valvoline conventional 10W30
- New water pump
- All new gaskets and seals
- Billet adj FP regulator
- Walbro 340 LPH fuel pump with hotwire kit
Transmission:
- TH200R4 transmission
- Fully rebuilt at 82,000 miles
- Pat’s 3000 stall converter
- Brand new clutch packs
- B&M shift kit
- New oil filter
- All new seals
- Driveshaft safety loop
Rear-end:
- Fresh fluid at 83,000 with LSD additive
- Ring and pinion set up shows minimal wear
Suspension:
- Stock front control arms
- Stock springs
- All new upper and lower ball joints
- All new energy suspension polyurethane bushings
- All 4 shocks replaced at 80,000 miles
- Edelbrock adjustable upper trailing arms
- Edelbrock boxed lower trailing arms
- New 17” Crager soft 8 wheels (black)
- New Pirelli P-Zero Nero tires (less than 500 miles)
- Aligned 2,000 miles ago
Interior:
- Mostly stock interior
- Panasonic CD player (I have original tape deck)
- All new speakers, wired to 700 watt Pioneer amp
- Small cigarette burn on driver seat and rear passenger seat (from previous owner, I am not a smoker, and the car doesn’t smell like smoke)
- Head liner fabric may need re-gluing
- Scan master 2.4 PAC alky control box
- 3 gauge a-pillar cluster (all gauges are Autometer Phantom series)
o Water temperature 100-250 degrees F
o Boost 0-20” Hg, 0-30 PSI
o Oil pressure 0-80 PSI
- Center console gauge pod (all gauges are Autometer Phantom series)
o Trans temp 100-250 degrees F
o Pyrometer 0-1600 degrees F
- B&M hammer shifter
- Door pull strap trim pieces (missing from previous owner)
- Steering wheel – usable, in rough shape (previous owner)
- Horn trim ring broken (previous owner)
- Turbo 6 floor mats
- New floor mats (after market)
Exterior:
- Rock chips
- Door dings
o Previous owner left tire jack unsecured, which dinged the left rear quarter panel in 2 spots from the inside
- 5% limo window tint
- All original center caps for wheels
- All original emblems (in good shape)
- Roof paint oxidized
- Hood mounted Autometer Phantom series fuel pressure gauge 0-80 PSI (I have a fuel pressure isolator, however it isn’t hooked up
- I have the original GN wheels as well

This car is immaculate, runs great, and needs very little work. It does leak a little bit of oil due to the girdle. I have owned this car since January 2006, and put between 6,000-7,000 miles on the vehicle. It is always kept in the garage, I am not sure what the car will do in the quarter mile, but it is very fast! I have receipts for most parts and machine work done. I am sure I am forgetting parts....
Thanks in advance for your time!
-Andrew
 
15k-20K depending on the buyer. Sucks that you will get get back most of the performance parts $$ that were added to the car. Good Luck!:cool:
 
I'd say 15k to 20k is about right just like TurboGA says. Having crappy paint is going to take a big bite out of the value of your car. You could have a bone stock car with nice paint and get around the same (at least here where I live)
i've found that performance parts never get you back your money that you put into it. But a great paint job will come close.
 
Unfortunately the market is really soft (still), especially on cars that have been built up. Friend of mine had over 30k invested in his WE4 and estimate he lost about 12-13k on the deal. Best guesstimate is 18k.
 
That's what i figured... I think a couple hours with a buffer and some clay bar could make the paint look MUCH better however.
-Andrew
 
Make it shine, makes a lot of difference to a potential buyer. I would say very low $20k at best right now.
 
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