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FIVEPTOHH 05-19-2013 09:47 AM

Spark Plug Wires help
 
I am looking for new spark plug wires for my 2003 496 mag ho motors..does anyone have a AC Delco part number? Merc wants 500.00 for each set.....

jpthrill 05-20-2013 08:24 AM

Good luck i went thru this last year on my searay unlike in a car the wires are routed around the exhaust manifolds so ones from a car or truck will not work they are short
only thing i would think of is buy universal wire set and make them to the length you need

FIVEPTOHH 05-20-2013 08:43 AM


Originally Posted by jpthrill (Post 3928648)
Good luck i went thru this last year on my searay unlike in a car the wires are routed around the exhaust manifolds so ones from a car or truck will not work they are short
only thing i would think of is buy universal wire set and make them to the length you need

Yup I thought I was smart and ordered a set for a 2003 chevy truck with the 8.1 and of course they were not nearly long enough. It just blows my mind to think that they can charge $500 for a set of wires...or you can buy them for $100 each if you only need a few...hahaha its a joke

benjen 05-20-2013 08:46 AM

I think the aftermarket can solve your problem.............for example MSD

mjc 05-20-2013 09:20 AM

MSD's from Teague are under $100.

FIVEPTOHH 05-20-2013 10:28 AM

I just ordered part number 32079 from MSD. I called and talked to the tech dept and that is the plug wire that they reccomend for my application. I will have to put the end on my self and cut them to length which is no big deal I have done them in the past before. They cost $ 137.95/ set from Summit Racing.

Thanks everyone for the help.

It still just blows my mind to think that Merc tries to get $500 for a set of wires that are probably not half as good as the MSD wires

Sydwayz 05-20-2013 10:46 AM

Good info here; thanks. Please be sure to report back on how they perform once installed.

txtraveller2002 05-20-2013 12:31 PM

Just wnet through this a couple of days ago. The late 90s Corvette set will fit. Mine are BWD supermags. Part number is CH869. One of the short ones has a straight boot, and is kind of a PITA to get on, but the rest will work.

Sydwayz 05-20-2013 12:44 PM


Originally Posted by txtraveller2002 (Post 3928804)
Just wnet through this a couple of days ago. The late 90s Corvette set will fit. Mine are BWD supermags. Part number is CH869. One of the short ones has a straight boot, and is kind of a PITA to get on, but the rest will work.


Late 90s? As in a 1997-1999 Corvette C5 with the LS1 engine?

boatnt 05-20-2013 12:49 PM

18-8838-1 84-881698,496-8.1 lr, distributor less ign, Ignition Parts mag star Wire Sets.Ignition Wire Set 120/140 discount high voltage ignition wire sets, s.s. coil core magstar v-6 wire sets, v-8 magstar ignition wires discounted, mercruiser h.e.i.



for 496 mag and HOs

boatnt 05-20-2013 12:51 PM

Ignition Parts mag star Wire Sets.Ignition Wire Set 120/140 discount high voltage ignition wire sets, s.s. coil core magstar v-6 wire sets, v-8 magstar ignition wires discounted, mercruiser h.e.i. ignition sets, tune up wire sets, high voltage igniti


for 502s

Sydwayz 05-20-2013 12:58 PM

I'd be very interested to hear if any of these other kits like the two posted above and the MSD custom option provide any stereo feedback. Using the LS1 GM kit probably would not.

rgrgoog 05-20-2013 01:02 PM

I got the MSD 31489 wires from Teague for my 502s. About $90 a set.

FIVEPTOHH 05-20-2013 07:01 PM

Not to be a jerk but I am aware that there are alternatives out there for 502 and 454 motors but the EFI 496 mag ho motors are a whole different story I did a lot of homework on this and the best solution I could come up with is the MSD wires.

As far as stereo feedback I did ask about that and they said that it should not be a issue at all. Only time will tell.

Sydwayz 05-20-2013 07:09 PM

I remember cutting and installing Accell wires (big fancy 8.8mm yellow ones) for my Trans Am, in a military base parking lot some 20 years ago. I had a fancy stereo (for the day) at that time as well, and I had a ton of feedback. It's probably much different nowadays with electronic ignitions; but the memory still remains.

boatnt 05-20-2013 07:12 PM


Originally Posted by FIVEPTOHH (Post 3929030)
Not to be a jerk but I am aware that there are alternatives out there for 502 and 454 motors but the EFI 496 mag ho motors are a whole different story I did a lot of homework on this and the best solution I could come up with is the MSD wires.

As far as stereo feedback I did ask about that and they said that it should not be a issue at all. Only time will tell.

thats why my first post was for 496 ignition wires...just click on the link above

bob_t 05-20-2013 07:27 PM

I haven't been keeping up with the general forums, but Raylar used to have lots of sets of the 496 plug wires that were "take-offs" from the packages he made. Could probably search on here to see if he is still around. I think he was somewhere under $100 for a brand new set of Merc wires for the 496s'.

FIVEPTOHH 05-20-2013 08:58 PM


Originally Posted by bob_t (Post 3929051)
I haven't been keeping up with the general forums, but Raylar used to have lots of sets of the 496 plug wires that were "take-offs" from the packages he made. Could probably search on here to see if he is still around. I think he was somewhere under $100 for a brand new set of Merc wires for the 496s'.

I emailed Raylar yesterday and never got a response. When I was searching this problem out I saw his name mentioned a lot regarding the plug wire problem and at one point he said that he no longer had any take off wires..?

txtraveller2002 05-20-2013 11:37 PM


Originally Posted by txtraveller2002 (Post 3928804)
Just wnet through this a couple of days ago. The late 90s Corvette set will fit. Mine are BWD supermags. Part number is CH869. One of the short ones has a straight boot, and is kind of a PITA to get on, but the rest will work.

Craptastic....sorry, stand corrected, I didn't see the 496 part. the vette plugs work for 502s.

FIVEPTOHH 06-07-2013 10:39 PM

The plug wires that I ordered from Summit Racing worked perfectly.!! Way cheaper than Mercs and they all fit no problem. I had to cut all of them down and I used the 90 degree boots instead of the long straight boots. Big money saver!!

fountainfevr 06-07-2013 11:17 PM

I have the yellow Accel wires and have no radio feed back at all, 502 With MSD box!

maineriverrunner 06-12-2013 06:38 PM

I run the MSDs on mine, no problems to report. They are a great company run their stuff for years on the race vehicles

CatDiesel 10-25-2021 11:40 PM


Originally Posted by fiveptohh (Post 3928235)
i am looking for new spark plug wires for my 2003 496 mag ho motors..does anyone have a ac delco part number? Merc wants 500.00 for each set.....

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