destroyerSS

iTrader: (2)

i'm going to be installing my mac headers and ory pipe on friday after work and i'm wondering about how long it should take? I'll have a lift. Also should i buy GM manifold gaskets or use mac gaskets? Lastly is there any tricks or tips you can help me out with. thanks for any advice <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Spydum

Depends on your experience. It took me two days, but could have easily been done in a few hours with the appropriate tools and a lift. Reuse the metal gasket that is on your manifolds now. No need to use a new one. You may have to jack the motor up an inch or so, or remove the passenger side valve cover to the the passenger header on. It's a big pain. The drivers side removal and install should be a snap, could probably do just the drivers side in 2-3 hours at most. Passengers side is the nightmare. Removing the back manifold bolt takes forever. Hope this helps. Also, as I'm sure you've read, might as well do a plug change while you're in there.

ApacheDrill

iTrader: (21)

I broke 2 plugs doing mine. Good call to replace them all while you are there. Drivers side cake, i pulled Ac, starter and lofted motor to get [assenger side in. I recommend replacing the metal GM gaskets.Exhaust leaks suck. do the job right the first time, it will save you time in the long run <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" /> good luck!!! you will be happy with the results. <img border="0" alt="[gruffy cottonball]" title="" src="graemlins/gr_gruffy.gif" />

Z06PSI

iTrader: (33)

God...... Took 3.5 hours on jackstands. Did not break one plug. Did not pull A/C (only coil pack rails and valve covers) and it was a sinch. Same with my buddys hooker LT's except had to pull the steering knuckle.. Easy stuff. Take your time with it and think.

PS- best way to pull plugs,coil pack, and manifold bolts is to get up into the engine bay on top of the engine and use a 1/4 drive rachet.

akaceril

the passenger side motor mount bolts are kinda tricky if you do jack the motor. oh and it took me about 8-9 hours over two days. the air/egr tubes will be a bitch to bend and such if you don't have a vice. and be careful not to pinch you A/C lines. good luck <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />

mike c.

iTrader: (1)

i installed mine on jack stands in 2.5 to 3hrs.i removed all the plugs too and never jacked the motor.it was a pain in the *** doing it my way,if you have a lift and can jack the motor 3inch or so,easy money. goodluck.

destroyerSS

iTrader: (2)

finished the job last night or i should say this morning about 2am all went fairly well not real happy with the way the ory pipe fit but i got it all together. about 6HRS and this was with me porting out my headers moving my starter wire and doing a few other fixs to my car. only had to remove my back plus on each side and grind down the casting on the block. also on the pass side i remove the back 2 coils didn't touch my A/c at all. nice power improvement. thank for all of your advice. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />