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question about installing heads!

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Old May 28, 2006 | 12:52 PM
  #1  
91sleeperRS's Avatar
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Joined: Mar 2005
Posts: 123
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From: Norfolk, VA
Car: Sold my Thirdgens, want another one
Engine: L98/TPI
Transmission: 5-speed
Axle/Gears: 3.45
question about installing heads!

the mechanic i brought my car to said that i have compression loss in 2 of my cylinders on the passenger side. so he wanted to send the head off to have the valves replaced for a large some of money.

so i have decided just to buy a new head and replace it myself. if it comes complete with all the valves and springs, is there anything more to it besides bolting it on, putting in my pushrods, and bolting on my rockers?

ive never done this before, so please help!
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Old May 28, 2006 | 02:00 PM
  #2  
84z28350's Avatar
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Joined: Aug 2005
Posts: 3,004
Likes: 4
From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
Is it 2 cylinders side by side?

If thats the case, its probably a headgasket...


If not how is he so sure its the valves?



But anyways, a head swap is fairly simple and straight forward.

Are you running any sort of aftermarket cam? If so you will be best to swap the springs to match the cams requirements.

Other than that drop in on, lash the rockers, install intake and your good to go.

Last edited by 84z28350; May 28, 2006 at 02:04 PM.
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Old May 28, 2006 | 02:10 PM
  #3  
Air_Adam's Avatar
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Joined: Oct 2002
Posts: 9,067
Likes: 1
From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Just make sure that, in the end, you have a matching set of heads (same castings, same valve size, etc) or you can run into some really bizzare running problems.
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Old May 28, 2006 | 02:36 PM
  #4  
Ray102386's Avatar
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Joined: Jan 2006
Posts: 161
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From: Camp Lejeune, NC
Car: 83' Camaro
Engine: 355
Transmission: TH-350
Axle/Gears: Open...
This is so much easier than you think it is, how well i know. I pulled the heads for the first time and asked a few questions here and some friends, and i pretty much had it straight forward. Pull heads, clean mating surfaces, replace gasket, put head on, torque down in order and in the respectful amount of torque, pushrods, set valve lash, Chiltons/Haynes work awsome for this, intake...ect...ect...ect....
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Old May 28, 2006 | 07:03 PM
  #5  
91sleeperRS's Avatar
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Member
 
Joined: Mar 2005
Posts: 123
Likes: 0
From: Norfolk, VA
Car: Sold my Thirdgens, want another one
Engine: L98/TPI
Transmission: 5-speed
Axle/Gears: 3.45
i do have a aftermarket cam that was installed by the previous owner. im not sure if he changed the valve springs or not. is there any way i can verify what kind of springs i have on now?
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Old May 28, 2006 | 08:57 PM
  #6  
Ray102386's Avatar
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Joined: Jan 2006
Posts: 161
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From: Camp Lejeune, NC
Car: 83' Camaro
Engine: 355
Transmission: TH-350
Axle/Gears: Open...
Valve spring pressure tester. Summit and i am sure Jegs also has them. They are not cheap though....in the neighborhood of about $200.
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