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1978 Eldorado Spark Plug Wires recommendation

Started by dennisspeaks, December 06, 2020, 01:39:31 AM

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dennisspeaks

Looking at changing spark plug wires, distributor cap and rotor.  Should I just go with AC Delco for DC and rotor?
CURRENT CLASSIC CARS
1939 Cadillac
1976 Eldorado convertible
1978 Toronado XS
1994 Deville
1989 Fleetwood
1989 Town Car
1982 Mark VI

PAST CARS
1978 Biarritz
1978 Eldorado
1978 Biarritz
1978 Biarritz
1974 Eldorado - RIP
1976 Eldorado Vert
1975 Sedan d'Elegance
1990 Sedan Deville -gave to son
1988 Fleetwood Brougham - gave to daughter
1968 GTO
1965 Olds 442
1975 Caprice Classic Sold

The Tassie Devil(le)

I wouldn't have a problem with that choice, as I did the same when I purchased a set for my '72, with HEI, from Rock Auto.

Bruce. >:D
'72 Eldorado Convertible (LHD)
'70 Ranchero Squire (RHD)
'74 Chris Craft Gull Wing (SH)
'02 VX Series II Holden Commodore SS Sedan
(Past President Modified Chapter)

Past Cars of significance - to me
1935 Ford 3 Window Coupe
1936 Ford 5 Window Coupe
1937 Chevrolet Sports Coupe
1955 Chevrolet Convertible
1959 Ford Fairlane Ranch Wagon
1960 Cadillac CDV
1972 Cadillac Eldorado Coupe

TJ Hopland

I have been pretty happy with Belden wires.  Got some that are over 10 years old now and seem to be still doing good.   If looks are a concern they are blue vs the more grey or black of the originals.   I don't think I have used them on a big Cad so can't comment on how well they fit. 

I also don't have a problem with Standard Ignition especially if you can get the 'blue streak' version.   So far none of that stuff has let me down quality or fit wise and is what I put on my 73 when I bought it 28 years ago that I just replaced last year with another set.   Again if looks are an issue for you these may not be the ticket because the boots on the plug end are pretty huge compared to the OE ones but I like em because they are big and stiff so they keep the wires well away from things like the exhaust.    I also can't remember if they have the little nubs on the cap end to fit into that retainer ring on the cap.   I can't remember that because I also can't remember the last time I worked on a car that still had that ring.

You can also buy the 'performance' caps and rotors which usually come as a set.   Your parts store likely has a couple options in stock in their hot rod section.   All the performance ones I have encountered have been good quality and usually pretty similar price to the 'stock' replacements which seem to be always deteriorating in quality.    Again looks could be a problem for some people since the performance stuff usually isn't black.  I like the other colors since its easier to see the carbon build up.   There is also a problem with some of the stuff some people used to make the plastic black,  its somewhat conductive.   Not something you want in something that is supposed to insulate against high voltage. 

What ever you get look carefully at the inside of the cap where the coil hangs down and the button is.   Many of them have little nubs there that must be part of the injection process.   Have had a couple different brand ones where those nubs were big enough to hit the rotor.   If they are there you will need to grind or sand them down.   Also make sure you assemble the coil correctly.   Button in first then the washer then the coil.     
StPaul/Mpls, MN USA

73 Eldo convert w/FiTech EFI
80 Eldo Diesel
90 CDV
And other assorted stuff I keep buying for some reason