Special tool needed for removing spark plugs with headers?
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Joined: Mar 2005
Posts: 97
Likes: 0
From: New York
Car: 1987 IROC
Engine: 350?
Transmission: 700-R4
Special tool needed for removing spark plugs with headers?
I cannot fit a normal socket to remove (change) sparkplugs. They were a custom job and there is just not enough clearance to change them all (the middle 2 on each side) the back and front were easy but the middle raise in such a way I can't remove them. If anyone needs pics I can take some 
Is there a special wrench or something that might get the job done?
I can't for the life of me get the headers off

Is there a special wrench or something that might get the job done?
I can't for the life of me get the headers off
Joined: Jun 2003
Posts: 499
Likes: 12
From: Oak Harbor, WA
Car: 1990 IROC-Z
Engine: 383 HSR
Transmission: 700R4
Axle/Gears: 3.70
I cut off the closed end of a combination wrench and welded it on the closed end of another combination wrench. It takes me all of 20 minutes to change spark plugs now. Granted, I dont have EGR/AIR anymore either.
Don't sweat it. He has a valid point, but maybe stepped on the gas a little hard in pointing it out.
Another trick.... ever notice that spark plug sockets have a 6-point fitting on the far end? Guess what that's for. Yep, putting an open end on it to turn it, so you don't have the big ratchet head sticking out the back end of the socket. Might help, might not.
Another trick.... ever notice that spark plug sockets have a 6-point fitting on the far end? Guess what that's for. Yep, putting an open end on it to turn it, so you don't have the big ratchet head sticking out the back end of the socket. Might help, might not.
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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
I just use a 5/8" wrench to break them loose, and my fingers to twist them out... works just fine for me
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
The easiest way to change the spark plugs with headers? Simple, unbolt and pull each header to the side one at a time and change the spark plugs.
Ive tried all the other methods and theyre either too cumbersome or I ran the risk of damaging/mistorqueing the plug. If you where dilligent with the anti-seize grease when you installed them, it takes about 10 mins to unbolt each header
Ive tried all the other methods and theyre either too cumbersome or I ran the risk of damaging/mistorqueing the plug. If you where dilligent with the anti-seize grease when you installed them, it takes about 10 mins to unbolt each header
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Alot of the shorter plugs have the screw off terminals. I had a real bad experience with boschs with them and after awhile the constant arcing causes deposit formation around the threads of the terminal, blocking current. Eventially they caused arcing in the wires, which eventially destroyed teh wires, ign. module, and coil. Never use anything with those screw on terminals again. A/C Delco all the way. Just my
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Joined: Oct 2004
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From: Worcester, MA
Car: 86 T/A
Engine: HSR 355
Transmission: 700R4
Axle/Gears: 2.77 posi
Originally posted by Air_Adam
I just use a 5/8" wrench to break them loose, and my fingers to twist them out... works just fine for me
I just use a 5/8" wrench to break them loose, and my fingers to twist them out... works just fine for me
Joined: Sep 2004
Posts: 5,906
Likes: 240
From: Chicagoland Suburbs
Car: 1989 Trans Am GTA
Engine: LT1, AFR 195cc, 231/239 LE cam.
Transmission: M28 T56
Axle/Gears: 3.23 10bolt waiting to explode.
You know, I fought with my headers to get plugs loose and I couldn't get a 5/8th wrench in there. Maybe I could get one with an offset end.
But it took me like 10 minutes to unbolt the headers and that is talking a mile a minute to my friend who stopped by.
I bet I could change the plugs compltely in about 30 minutes.
I ran a compression test too while I was doing it, so it took a bit longer. Spent maybe about 4 hours doing various things on the car yesterday. It needed it.
The stealthram now pulls like a freight train up top. Its scary how fast it winds the tach up in 3rd gear.
But it took me like 10 minutes to unbolt the headers and that is talking a mile a minute to my friend who stopped by.
I bet I could change the plugs compltely in about 30 minutes.
I ran a compression test too while I was doing it, so it took a bit longer. Spent maybe about 4 hours doing various things on the car yesterday. It needed it.
The stealthram now pulls like a freight train up top. Its scary how fast it winds the tach up in 3rd gear.
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I took the liberty to cleanse this thread of non-tech, personal-attack content. If some of the posts don't seem to follow now, that's why.
To all who were involved with the mud-slinging - be hereby warned that such conduct is in violation of Board rules and will not be tolerated.
Enough said.
Now, back to the topic: Yes, clearance is challenging, but a modified socket makes it easier. I'll try to post a picture of mine this evening.
To all who were involved with the mud-slinging - be hereby warned that such conduct is in violation of Board rules and will not be tolerated.
Enough said.
Now, back to the topic: Yes, clearance is challenging, but a modified socket makes it easier. I'll try to post a picture of mine this evening.
Last edited by five7kid; Jul 12, 2005 at 02:14 PM.
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
My apologies, I inadvertently deleted the post with the picture of the modified socket. If the member that posted that item would be willing to repost, it would be appreciated.
Again, my apologies (thread editing can also be challenging).
Again, my apologies (thread editing can also be challenging).
Joined: Jan 2002
Posts: 732
Likes: 1
From: waco, tx
Car: 91Z28 L98
Engine: HSR 350
Transmission: Goebel 700R4
Here's a Craftsman plug socket I bought for $4 and cut it shorter, then drilled out the end (where the ratchet goes). May or may not work depending on how much clearance there is between your header tube and spark plug.
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Posts: 447
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From: Carmel NY
Car: 85 IROC Ht
Engine: 383 carb
Transmission: T56
Axle/Gears: Moser 12 bolt 411
I have to get to some of mine from the bottom side with a combo wrench . # six is a real pain 1/8 turn at a time I may have to try one of the trix posted above good luck . Flow Tec Junk
Joined: Feb 2001
Posts: 13,756
Likes: 560
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
I bought this socket off of ebay for $9. It was easier to buy one than to modify one of my own. It works great and I could change my plugs in ten minutes with headers.
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