spark plug problem
Posting Guru
Joined: Nov 2003
Posts: 1,888
Likes: 1
From: Iowa
Originally Posted by eriksf250
since i have a 352, and i know there's a lot of guys in here with 352s, i would like to know what kind of spark plugs they run and what their part number is so i can check them out.
Post Fiend
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
I run the plain 45's. The AP’s are platinum and the APP’s are double platinum.
For a low-compression motor platinum is ok but I wouldn’t run them in a hot performance engine, they’ll flake and most car manufacturers don’t recommend them anyway.
For a low-compression motor platinum is ok but I wouldn’t run them in a hot performance engine, they’ll flake and most car manufacturers don’t recommend them anyway.
Senior User
Joined: Jul 2003
Posts: 204
Likes: 0
From: Montana
I run Autolite 45's in my 390. They work great.
I used to have a 340 Mopar that I ran at the dragstrip. That engine would miss with brand new Champion plugs, then run the rest of the day's races on an old set of autolite plugs and not miss a lick. Go figure.
I used to have a 340 Mopar that I ran at the dragstrip. That engine would miss with brand new Champion plugs, then run the rest of the day's races on an old set of autolite plugs and not miss a lick. Go figure.
Freshman User
Joined: May 2004
Posts: 41
Likes: 0
From: Fort Collins, Colorado
Originally Posted by eriksf250
I had a wierd incident with my plugs. I bought Bosch Platinum plugs for my truck and my truck won't start with them. I checked to make sure they are right and I gapped them right and they won't work. The funny part is that the old ones will still work.
I'm guessing your problem was not enough spark, as the platiums are use to way more Kv to fire, than say points ignition.
I've always run with the rule...Autolights for Ford, Champions for Dodge, and AC delco for Chevy, leaving NGK's for the imports
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Laughing Gas
Joined: Mar 2003
Posts: 877
Likes: 1
From: Colorado, U.S.A!
Originally Posted by campinrig
Platinum plugs are best suited for any DIS system, and this is due to the fact the PCM actually wil fire the plug backwords if you will. The C.O.P. setup isn't as noticeable, as the master coil pack often found on the 4.6/5.4, and even Fords V-6's where those will actually fire 2 plugs at the same time, one plug fires from elctrod to ground, and the other fires from ground to electrod. Because of this they need the planium tip for this to happen. From the factory they actually put a normal plug on one half and platium one on the other half, to cut cost down.
I'm guessing your problem was not enough spark, as the platiums are use to way more Kv to fire, than say points ignition.
I've always run with the rule...Autolights for Ford, Champions for Dodge, and AC delco for Chevy, leaving NGK's for the imports
I'm guessing your problem was not enough spark, as the platiums are use to way more Kv to fire, than say points ignition.
I've always run with the rule...Autolights for Ford, Champions for Dodge, and AC delco for Chevy, leaving NGK's for the imports
Freshman User
Joined: May 2004
Posts: 41
Likes: 0
From: Fort Collins, Colorado
Originally Posted by c96drumm
My 96 Exploder came with plugs that had the platinum electrode on center for one side and on the ground electrode for the other side due to opposite polarity. The platinum is very wear resistant, that's why it's used, not because it's required for the opposite polarity or more voltage. They just hold up better. At least that's been my understanding...
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