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Header Install

chrisgsx

chrisgsx

New member
I have a 99 Grand Prix gtp and i'm trying to figure out the easiest way to install the headers, ive searched and cannot find an exact write up. I have the engine out right now. Would it be easier to put them on, then install the engine? Or should i wait until the engine is in? Any help would be great! Thanks
 


Your best bet is to look at the top swap write up as that is essentially what you are taking off and putting on.
 


Best bet is to lay the rear header in place. As you bring the engine in and it's still floating, hook up the two ends (studs with nuts) and then you can finish it off easily after the engine is in place.
 
Getting the transmission dipstick bent just right and back in was the biggest pain on my SD header install. Specifically getting the little 10mm bolt back int, that was a PITA.
 
Take the fans out...makes a CAKE of an install if you've got ratchet straps on it...which you should...it makes life way easier.
 




Guys...I've installed three sets of these. Someone please tell me why you want to take out the dipstick tube for the trans. Why you want to ratchet the motor forward while it's out of the car and why this is so difficult?

I've never worried about a dipstick tube. These aren't togs. Those are the only ones I've had issues with dipstick bending.
 
well after reading yeah... just put the rear header in then drop the engine in and put the crossover and front mani on
 
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