Author Topic: bosch spark plugs?  (Read 4594 times)

Offline choptop

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Re: bosch spark plugs?
« Reply #15 on: May 05, 2008, 08:59:01 PM »
The probelm won't be immediate and may not happen at all. It has been a while since I tried them, so they may have fixed it. For now, enjoy your ride.
76 C10 Choptop,76 C10 Swb
85 C10, 85 K10, 85 K20,86 C10,86 K10 (all extended cabs)
86 C30 extended crewcab

Offline 197

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Re: bosch spark plugs?
« Reply #16 on: May 05, 2008, 09:03:02 PM »
Does anyone know if its the single prong plugs that fail or the 2+,4+?


I also today decided it was the day to change my tranny filter/oil. I took her out for a little spin after all the maintenance and it runs great. The plugs still kinda worry me. IDK we'll see what happens
'73 C20 454

Offline choptop

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Re: bosch spark plugs?
« Reply #17 on: May 05, 2008, 09:18:45 PM »
the single, don't worry about it, it won't just shutdown on you, you will develop a miss, but for now, don't worry.
76 C10 Choptop,76 C10 Swb
85 C10, 85 K10, 85 K20,86 C10,86 K10 (all extended cabs)
86 C30 extended crewcab

Offline zieg85

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Re: bosch spark plugs?
« Reply #18 on: May 05, 2008, 09:28:39 PM »
I tried Bosch one time.  Had a mis-fire on 2 of the plugs, swapped out the 2 with the original plugs to get it running on all 8.  I bought another set of AC and never had a problem again. 
1985 C30 Custom Deluxe Ext. cab 5.7L TH400 3.21 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
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Offline Lt.Del

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Re: bosch spark plugs?
« Reply #19 on: May 05, 2008, 09:37:14 PM »
everyone is talking about AC Delco, autolite.....I have used Champion for many a moons without any problems. B4 I changed out my engine on my 79 to a 383, the 350 had many miles on it and I went to a hotter champion truck plug and she never missed one beat nor fouled.
Just my X peer E ance


Offline choptop

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Re: bosch spark plugs?
« Reply #20 on: May 05, 2008, 09:43:40 PM »
I had bad experiences with Champion plugs, but on the industrial side. A set of Champions would last, at best, half the life as the other plugs (Manufacturer brand) and on more than one occassion had a couple of plugs not work when new. Now this was a 16 cylinder industrial gas compressor, but still enough to make me leary. Honestly, I have not used champion in an automotive application for years, si the the automotive feild, I can't say anything good or bad about them. I have had bad experience with Splitfire plugs in a newer Jeep, and a couple of other vehilces, so I am not impressed with them. Even done some testing on them, but that is another story.
76 C10 Choptop,76 C10 Swb
85 C10, 85 K10, 85 K20,86 C10,86 K10 (all extended cabs)
86 C30 extended crewcab

Offline VileZambonie

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Re: bosch spark plugs?
« Reply #21 on: May 05, 2008, 10:14:14 PM »
Champions don't last as long but they wear nicely. I use them in all Chrysler applications. I use only Delco in GM. I use motorcraft in fords and NGK in most foreign applications. the Bosch platinums always fail down the road.
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Offline 197

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Re: bosch spark plugs?
« Reply #22 on: May 06, 2008, 07:26:46 AM »
So far its good. But Ill pick up another set of AC's Or Autolites soon.
'73 C20 454