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  1. 3

    What is a used GNX engine, transmission, ECM, wiring harness worth?

    There is a guy close to me that has a used GNX drivetrain up for sale. He is asking $4k for it all. Engine does run. What do you guys think? Is it worth it? Mike. Posted from the TurboBuick.Com mobile app
  2. 3

    Suggested parts to beef up 200R4 trans?

    Hello everyone, I'm planning on making 600+HP with engine. The 200R4 trans is now headed to rebuild shop. My question to you guys is what should be upgraded inside the trans? Besides the normal like new clutches, wider band, shift kit, and new gaskets. What else should be done? Shop charging me...
  3. 3

    Manual trans upgrade or not?

    Just putting my thought out to guys on the site. I have a 87 National engine, but no auto trans. I do have a Borg Warner 5 speed manual that will bolt up to the national engine. What do you guys think is this a cool upgrade or should I get a factory auto. Mike.
  4. 3

    Mass air flow meter not working

    Hello, Just wondering if anyone has a permanent repair for the factory MAF not working correctly. There are several different options out there on the internet, but I would like to know what is the best result from somebody on this site that has used or is currently using the repair with...
  5. 3

    New to this Forum & Grand Nationals

    Hello Everyone, My name is Mike & I'm a new proud owner of a 1987 GN drivetrain. Here is a little info about me & my Hybrid project. I'm 35 years old, married to my wonderful wife of 13 years & we have a 2 year old daughter. I currently live NC & work as a automotive technician. My Hybrid...
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