Author Topic: plug wires for 340 with headers  (Read 3819 times)

Offline hooD

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plug wires for 340 with headers
« on: September 01, 2007 - 11:10:43 PM »
I am having one hell of a problem finding spark plug wires for my 340 Cuda.  It is on the drivers side of the engine, the two plugs closest to the firewall.  The header pipe is directly in front of the plugs.  I need a 90 degree spark plug boot for these 2 plugs.  All of the other 6 wires can be either straight or 90 degree.   

I prefer 6 straight boots and (2) 90 degree boots.  The MSD set i bought did not work.  It did not contain enough brass inserts to crimp with because the 2 wires that need the header clearance needed to have both ends crimped on.  To make a long and boring story short, i had to return the wires and use my original set.  Back in the day you could buy seperate wires with the 90 degree boots, which is what i have now. 

A guy at a local speed shop suggested that i go with a different distrubitor cap that is HEI or the chevy style.  He said this cap would give me greater options in wire sets.  Frankly, i totally gave up on the whole idea of replacing my 34 year old set of wires.  I really need them but this is becoming a fricken major pain in the butt.  Why can't i just buy 6 straight booted wires and two 90 degree booted wires without all the Drama????   :dunno: :1zhelp: :clueless:

I know someone out here has a 340 with headers and has the same clearance problems i have.  What brand are you using?  I would like a 8mm set that has all the bells and whistles of quality.
-Larry
member since AUG 2007
http://www.youtube.com/watch?v=NvrWiLgDm7Y

southeastern michigan usa
             
 
            
1973 'CUDA 340
 
original owner
37,117 miles
  
:grinyes: *click my E-Body* :grinyes:




Offline Bullitt-

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Re: plug wires for 340 with headers
« Reply #1 on: September 02, 2007 - 12:19:49 AM »
You can get all kinds of components & even single wires from MSD...here's Summit Racings listsing
http://store.summitracing.com/egnsearch.asp?N=700+4294925143+4294756594+400122+115+4294844024
Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
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Offline RaptorF229

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Re: plug wires for 340 with headers
« Reply #2 on: September 02, 2007 - 12:25:43 AM »
yeah the easiest way is to buy the plugs in singles

Offline HP2

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Re: plug wires for 340 with headers
« Reply #3 on: September 06, 2007 - 09:54:53 AM »
I've always just picked up what ever wire set I wanted, then went to Napa and picked up two 90 degree boots and crimp on ends. Replace the two offending wire ends, your done.

Offline CUDA JAS

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Re: plug wires for 340 with headers
« Reply #4 on: September 13, 2007 - 09:52:19 PM »
I have used Accell 8 mm universal fit wires with the 90 dergee boots.  You cut them to length at the dist end.

Here is a pic, dont mind the filth, this is a befor pic.

I have seen the adapter to use a magnum cap (HEI style cap ends) and I must say, I like the idea as it would make for a cleaner install. 

74 'cuda 360/727



Gearhead: car nut, automotive enthusiast, one who loves hot rods, muscle cars, hot trucks, burnin' rubber and neck snapping performance. 

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Offline matt63

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Re: plug wires for 340 with headers
« Reply #5 on: September 14, 2007 - 01:50:53 PM »
This is why I bought TTI headers.  It's something to consider if you're going to keep the car a long time.
Matt in Edmonton

'68 Valiant
'73 Cuda 340 4 speed (408) SOLD

Offline hooD

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Re: plug wires for 340 with headers
« Reply #6 on: September 15, 2007 - 02:12:29 AM »
Some good suggestions coming in.   :2thumbs:  When I clean or change the rear 2 plugs, i have to unbolt the header and pull it back just enough to get my socket in there.  Every 5 years or so i check the spark plugs, so its not too bad of a job.

If you look closely at the last wire you can see where it had been laying up against the valve cover and must have arched through the wire and ate some of the metal away.  I remember a couple years ago that the car was missing at wide open throttle.  Now i know why!   New wires are on my to-do-list.
-Larry
member since AUG 2007
http://www.youtube.com/watch?v=NvrWiLgDm7Y

southeastern michigan usa
             
 
            
1973 'CUDA 340
 
original owner
37,117 miles
  
:grinyes: *click my E-Body* :grinyes:

Offline HP2

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Re: plug wires for 340 with headers
« Reply #7 on: September 16, 2007 - 11:19:50 AM »
Rather than loosening the headers, consider getting a spark plug socket with a hex end, and using that with a wrench to loosen and tighten plugs.

Offline matt63

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Re: plug wires for 340 with headers
« Reply #8 on: September 16, 2007 - 12:07:52 PM »
These are a little easier to work on.
Matt in Edmonton

'68 Valiant
'73 Cuda 340 4 speed (408) SOLD

Offline HP2

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Re: plug wires for 340 with headers
« Reply #9 on: September 16, 2007 - 04:52:22 PM »
Two boots, two ends, and crimper from napa; $35.00. New set of TTI headers $350.00-$650.00. Guess it all depends on where you want to spend your money.

Offline matt63

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Re: plug wires for 340 with headers
« Reply #10 on: September 16, 2007 - 08:04:47 PM »
True.  Good headers are a long term investment IMHO.
Matt in Edmonton

'68 Valiant
'73 Cuda 340 4 speed (408) SOLD

Offline GoodysGotaCuda

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Re: plug wires for 340 with headers
« Reply #11 on: September 16, 2007 - 08:13:39 PM »
i have cheap headers. build your own MSD wires w/2 90*s. and r&m separators. sorry old pic, mill doesnt look like that anymore. but same wires  :bigsmile:

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