Short Spark Plugs for Angle Plug Heads
Thread Starter
Racer
Joined: Apr 2005
Posts: 494
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From: Virginia
Short Spark Plugs for Angle Plug Heads
I bought Autolite Racings plugs P/N AR 2593 for my angle plug heads on a 73 corvette with Hooker headers. I could use a shorter plug, would rather not dimple the header. Thanks.
Ed
Ed
Racer
Joined: May 2003
Posts: 375
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From: LaSalle ON
The Accel shorty plugs are junk. I have been through several sets. (was lead to believe there were no alternatives) I had major problems with the end unscrewing inside the spark plug boot. I tried roughing up the threads 1st and tightening them with pliers, but even this didn't stop this from happening. I would think that Loctite might have a negative impact on the conductivity of the plug. I have NGK plugs in the car now and have had no problems.
Last edited by vettenoir; Jan 31, 2006 at 11:15 PM.
Racer
Joined: Sep 2004
Posts: 424
Likes: 2
Tips coming loose a problem ?? Why would this be, if your plug wires snap on tight and you have good wire looms, the plug wires would hold the tips in place & how much would the tips move ?? I don't use lock-tite for the same reason you mention about conductivity, but this is most likely being overly careful. Remember the charge jumps the gap of the plug and the tip even if loose will still make contact. Unless the tip is coming right off you may be blaming the plug for another problem. I run a Vertex Mag, so maybe my spark is more hot then others, but I doubt it, the spark is weakest at start up due to the fact that the Mag makes it's own charge, and it always snaps right off.
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Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
I searched the world for a shorter plug to clear my headers with AFR angle plug heads.
No such thing unless your talking the accel shorties which are only .100 shorter than my platinum plugs.
See they really are only .100 shorter. Not a good picture.
No such thing unless your talking the accel shorties which are only .100 shorter than my platinum plugs.
See they really are only .100 shorter. Not a good picture.
Thread Starter
Racer
Joined: Apr 2005
Posts: 494
Likes: 0
From: Virginia
The reason I am looking for shorty plugs is: I put the standard plugs in the head and then just put a couple of loose bolts in the header to see how it matched up. I had read that there could be problems with vet street headers and angle plugs heads. I only have the passenger side head on, but one of the plugs (second from the firewall) looks like it will touch the header.
Drifting
Joined: Jan 2004
Posts: 1,736
Likes: 2
From: Broken Arrow Oklahoma
St. Jude Donor '09
ngk v-power plugs worked in my trick flow angle plugs with headers. I cant remember but I think ther were r4's. Shorter than accel. I will try to find the plug number for you. cya
Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
The real only fix is to get a pipe shop to cut off the primaries near the flanges and weld in 3/4 of an inch pipe on each. That will place the pipes out far enough to clear any plugs and wires.
I have hooker S/C 1 3/4. I kind of blame them for a **** poor product. My headers come out farther on the drivers side before they curle down.
My Dart Pro 1 heads had no issues. My Brodix head were also fine. AFR heads is when i first had trouble. It's not their fault because they can't anticipate every type of header.
I have hooker S/C 1 3/4. I kind of blame them for a **** poor product. My headers come out farther on the drivers side before they curle down.
My Dart Pro 1 heads had no issues. My Brodix head were also fine. AFR heads is when i first had trouble. It's not their fault because they can't anticipate every type of header.
Last edited by gkull; Feb 2, 2006 at 10:39 AM.
Pro
Joined: May 2005
Posts: 745
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From: Miami Florida
Ed, ive had hookers, both sidepipes and comps on angled plug heads on my 70,73,80 and now the 82. even with header wrap there is room with a homemade socket. sears deep socket with the 5/8 bolt pattern at the ratchet side and a hacksaw. cut away at both ends. all you need is a thick 1/8"to engage the plug and for your open end to tighten it. fingers and patience for all but the last revolution and you only need this little tool for a few of the plugs.
Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Originally Posted by rastadr
Ed, ive had hookers, both sidepipes and comps on angled plug heads on my 70,73,80 and now the 82. even with header wrap there is room with a homemade socket. sears deep socket with the 5/8 bolt pattern at the ratchet side and a hacksaw. cut away at both ends. all you need is a thick 1/8"to engage the plug and for your open end to tighten it. fingers and patience for all but the last revolution and you only need this little tool for a few of the plugs.
This idea won't work when you can't even get the plug to start threading because the number 6 pipe with AFR heads. You can't even line up the plug. Then even if you installed the plug and then installed the headers you could not install a plug wire because the pipe will be touching. This is just an AFR head problem
Drifting
Joined: Jan 2004
Posts: 1,736
Likes: 2
From: Broken Arrow Oklahoma
St. Jude Donor '09
NGK UR4 is the plug I use on my angle plug heads and long tubes. It extends 1 3/4 to the tip once bolted in the head. You might find a shorter plug but this works for me. As far as a performance plug I do not know how hot it is. Hope this helps. cya
Thread Starter
Racer
Joined: Apr 2005
Posts: 494
Likes: 0
From: Virginia
It sounds like the shorty plugs will provide enough clearance so that the plug wire isn't touching the header. I would be willing to loosen the header to remove/install the plugs, if I had to. I just don't want to have to dimple or dent the headers to get clearance.
Thread Starter
Racer
Joined: Apr 2005
Posts: 494
Likes: 0
From: Virginia
Originally Posted by gkull
This idea won't work when you can't even get the plug to start threading because the number 6 pipe with AFR heads. You can't even line up the plug. Then even if you installed the plug and then installed the headers you could not install a plug wire because the pipe will be touching. This is just an AFR head problem