1987 Buick Grand National 4.1 V6 Custom Build

Description for Buick Grand National 1987

I have a 1987 Buick Grand National located in Columbus Ohio. I purchased this vehicle about 8 years ago and have tinkered with it ever since. The vehicle has a clear title and 59,482 miles on the body and per the receipts, he new engine build was completed at 58,800 miles. I've put about 2,400 miles on it in 8 years. It has a 4.1 block and I believe the CNC bore was 0.30. It has a RJC Crank Girdle, iamond forged pistons, anley 1.775 intake valves, oller rockers, illed heads, erformance valve springs, tudded heads, uctile roller cam kit, he list goes on. It has a HUGE front mount intercooler (you can see the piping in the pictures under the front bumper, T43 6767 Turbo, 0lbs injectors, ethanol Injection that uses the overflow tank as a reservoir. I've used Boost Juice exclusively that I purchase from JEGS. It has a 200-amp alternator, ustom tubing, .A.S.T. bank-to-bank Engine Management System, -inch downpipe, ooker headers, ooker exhaust. It destroyed the 200R4 transmission, o it was upgraded to a pro built TH-400 (3 speed W/O overdrive), PTC 3000 stall converter and a 4 inch drive shaft. I still have the 200R4 and original driveshaft. I purchased new door and trunk seals but was waiting for paint before installing them so they are all in the boxes. Front air dams are new in the boxes and have yet to be installed. When the adjustable boost gauge was on, stayed between 16-19 psi. The engine builder calculated the HP north of 748. The adjustable boost gauge was removed and it is now set at 16 psi, he seems to like it there. I have no dyno paperwork but the builder calculated a horsepower rating somewhere in the 700 range.

I'm not an engine expert by any means. I took it to Grand National expert and told him to make it go fast, 14,000 later this is what I got. It's fast, ow fast, really have no idea, nd I've never had it on the track, ust played in the street a little. It has almost 700 miles on it since the engine build. I'm sure I'm forgetting some things. The hard part is done it's really close to complete, ust needs to be buttoned up.

What I think it needs: I would say it needs a dual fan and radiator upgrade. It usually stays around 185 degrees unless you stay stopped in traffic on a hot day for a period of time. Maybe one with an oil cooler to keep the oil temps down a bit. The front mount intercooler restricts the airflow to the radiator so to rectify the climb in temps, t really should be upgraded. The original intercooler was placed between the engine and the radiator so the radiator was exposed and stayed cooler. The front bumper fillers need replaced., hey are believed to be original and have become fragile. They will break easily if you handle them. They are readily available online for around $200. The backs are still good. The headliner is starting to fall, t will need fixed or replaced. The shifter is an aftermarket one set up for a 3 speed. I believe I have original shifter somewhere. The AC compressor and condenser weretaken off during the engine build and comes with the car. Heater core was bypassed as it started leaking a few years ago. The new heater core is in a box in the trunk. Emblems on the interior door handle need replaced and the headlights need to be aimed. Like I said I've owed this baby for years and the only thing I've done is throw money at it. A large part of me is saying finish it, ut at the same time, y priorities have changed. I've dumped a ton of money into it, nbsp;anything and everything I have for the car goes with it. TE44 turbo, n extra quarter glass, xtra steering column, njectors, riginal computer, canMaster, nd a bunch of other random stuff.

It is not an original numbers matching show car. The engine was built to be a go fast daily driver. If you wanna race it, hats entirely up to the new owner, lap some decent tires on it and I'm sure it will run 10's or low 11's. Feel free to ask questions, will do my best to provide an honest answer and or paperwork for anything asked. I know I'm not going to get the money out of it that I put into it but please don't insult me with lowball offers, 'd rather it sit than to give it away.