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I am thinking about pulling my engine out of my 87 Buick GN to replace oil pan gasket, valve cover gaskets, head gaskets, etc.. What would you recommend I do while I have the engine out of the car? It has under 50,000 on the stock engine and I have plans to make this into a 11 second car. I...

Is this a good deal? Looks to be over 50% off and I am looking into headers for my GN. http://www.protuninglab.com/hds-gn86-t1.html Kevin

Will these HD Rocker Arm shafts fit on my 87 Buick Grand National with stock motor? Changing to Comp Cams 980-12 and want to replace stock shafts with HD shafts. will also replace the valve stem seals since I am getting the blue smoke upon start up and not while running...

Thinking of purchasing the Racetronix G77 fuel pump installation kit. This a good setup for the 87 Buick GN? THanks, Kevin

Need some education here. Did a search but didn't find an explanation on the recommended 3" downpipe with wastegate. What benefits is (are) this (these) and what do they do? I want to become educated so I can make educated purchasing decisions. I see some 3" downpipes come with wastegate and...

Been putting it off, but its time to fix. The interior lights and the power locks in the 87 GN I just purchased don't work. Are these are the same circuit? Does anyone have a wiring diagram for the interior lights? Thanks, Kevin

Where's the best place to purchase a PTC torque converter? I want a PTC 10" lockup 2800 stall. Kevin

Any interesting information on my 87 Buick GN on the Department Door Pad Bcast sheet? I found this inside the door panel.

Hello fellow GN owners. I just recently purchased my 87 Buick Gran National and I am wanting to do some upgrades to the stock engine to make a little more power. Any suggestions on upgrades that would be somewhat economical but yet effective? (i.e., MSD ignition, larger fuel injectors, intake...

Either lost a center cap or one was stole off my car. Does anyone got an extra center drop they would sell ? I see a couple on eBay. Anyone know if these are quality pieces?

What's the best spark plug to run in my 87 Buick Grand National? Thanks, Kevin

Is it normal for the engine to knock when turbo boost kicks in? If not, how do I correct?

What does the black wire plug into from the back of the radio? The orange and brown are for the antenna?

When I turn my radio on I can hear buzzing through the speakers, but the lights do not go on or the antenna does not go up. The courtesy lights do not turn on when the doors open and the shift indicator light does not work and the door locks do not work. The power windows do work though. The...

I recently bought a 1987 Buick Grand National with under 50,000 miles (48, 653) and have so many ideas on upgrades and getting this car into great shape. First thing is first though, I would like to get the engine number and rear end numbers and check them to see if they are actually original...