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I have an 87 GN that I would like to install a larger turbo on. I have the stock turbo right now. Please see my sig for the few modifications Ive done. As far as criteria goes for selecting a new one: * I don't care if its stock appearing or not. * Would be nice to have something that will...

Hi, I just recent purchased a kit from you, and am wondering if you still have horizontal decals available for the alky controller?

Hi Eric, my name is Tad and I recently placed this order, number 12263. I wanted to add on additional detail: can you program the chip so that the check engine light does not come on because of a disconnected/removed wastegate solenoid? Thank you!

Changing things up in my car, and I have an Autometer 4701 carbon fiber gauge for sale. It's currently installed in the car and works perfectly. It will include all the hardware that autometer normally includes. Reads from 30 inches/hg to 20 psi. $60 shipped to your door. I will include a...

Im posting this because after a lot of searching on the forum, I need to just ask to get the answers I'm looking for. So I've had my '87 GN in storage for several years, and I am putting in a mad effort to drive it on the road before salt gets laid down here in Michigan. Before I put it away...

Hi guys, I'm trying to find a GM parts catalog that would cover my 87 Grand National. I've heard of the "44w catalog" that are very hard to come across. Has anyone converted that into digital format? Is it available from someone in a PDF format or CD-ROM or something else? I'm looking for part...

I was curious if anyone has ever seen the fiber optic turn signal indicators that sit on top of the fenders on one of our cars, be it a GN or limited, or another g-body. They were common on older Cadillacs, and I had heard of it being an option on g bodies. Any pics or links or experience would...

I just finished doing the headgaskets on the G.N, and I started it up, and the same white smoke that I saw before I did my heads started pouring out the exhaust. I originally did the head gaskets assuming the white smoke was coolant, but this was the only time in my life I didn't verify it...

The price is attractive on the Eaton posi. And then there is the whole business of axle spline count, it makes sense, if you are going to replace the differential carrier with an aftermarket one, you might as well upgrade to higher spline count axles, in our case, from 28 to 30. I know some...

I'm especially interested in the Detroit Truetrac (made by Eaton) Differential, that's consists only of helical gears and no clutch plates/wearable parts.

I have an 87 GN, that came without a G80 limited slip differential. With so many different ones to choose from, I hoping members can chip in about their experiences with aftermarket limited slips, and which ones work well, which ones are junk, etc. etc. My car spends 95% of it's time on the...

I'm doing the head gaskets on my 87 GN, and the thought had crossed my mind to use some ARP head studs instead of the Felpro factory style torque-to-yield bolts. If I were to buy these, I have two questions: 1) Is it still as easy to remove and install heads with the engine in the car with...

I'm good on those, I just ordered some Comp Cams 980-12 Valve Springs. Thanks to everyone for the information, this is one of the best message boards out there!

Any other suggestions?

Yup, I actually replaced my injectors already, they probably only have 10,000 miles on em. I have heard of using Comp Spring 980-12, has anyone actually installed this on their stock GN?

I'm doing the head gaskets on my 87 GN and figure I might as well replace the valve springs while I'm there, the car has 70,000 on it. What would you guys recommend? It's a 100% stock motor, stock cam, heads etc. Also, should I replace the retainers as well? Appreciate any input or...

Thanks to the buyer, just recieved payment, these are sold!

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Thanks for the bump. Sale pending! And yes, you can certainly use the pictures, you do great work, I love the black anodized brushed alluminum look of the overlay. Anyway sale pending, but still accepting offers. If the potential buyer doesn't go for it, I will take the best offer.

I apreciate your input, but just so everyone knows, Hurst made a 3 speed lightning rod shifter, and a 4 speed lightning rod shifter. Mine is the 4, which is less common than the earlier 3 speed variations. This one, taken from an '83 or '84 Hurst Olds, is designed to work with the 4 speed 200-4R.