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What kind/brand of Spark Plugs do you use?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 87K54WD, Apr 3, 2000.

  1. 87K54WD

    87K54WD 1/2 ton status

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    Hey guys,

    Just wanted to see what brand and kind of spark plugs you use. I'm trying to find out if AC Delco makes the RapidFire for the 87 K5. What about the Champion Truck Plug ... anyone heard anything about them? Looking to replace the plugs this week.
     
  2. Burt4x4

    Burt4x4 3/4 ton status

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    I have been runnig Bosh Platnums the last couple yrs. I have no complaints.

    Rock ON![​IMG] 72 K5 [​IMG]
     
  3. '73 K5

    '73 K5 1/2 ton status

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    I've had better luck with Champions than most others.

    '73 K5
    Chevy good...Ford bad
     
  4. RaisedK5

    RaisedK5 1/2 ton status

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    I run the Champion Truck plugs in mine, I had the first set for @ 1.5 years, and when I pulled them they looked practically new, the only reason I changed them is because I broke 4 getting them out, antisieze is your friend, I've been very happy with them.

    RaisedK5

    "Friends don't let friends drive Fords"
     
  5. 88Jimmy

    88Jimmy 1/2 ton status

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    Champion Truck Plug Works best in my Jimmy
     
  6. 87K54WD

    87K54WD 1/2 ton status

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    Looks like the Champion Truck Plugs are leading .... keep them coming! I've seen the Champion Truck Plugs somewhere but what store has them for sure??? PepGirls, Hi/Lo (O'Reily), AutoZone, etc.???

    Thanks to those who have replied so far!!!!!!
     
  7. Michael

    Michael 1/2 ton status

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    I had AC/Delco in my '74 with stock points ignition. They would foul in less than 200 miles. Yes, the engine burns lots of oil.....only 146,000 miles! My point is I changed to an HEI and Bosch Platinum 8 months ago, and not one fouled plug. HEI or plugs, I'm not sure but I'm keepin' 'em both![​IMG]

    Michael [​IMG] http://jmartin.net/parker/goose.htm
     
  8. 89Jimmy

    89Jimmy 1/2 ton status

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    I just got a set of Bosch Supers at auto zone for $.99 each. The champions that I took out looked fine, but my mileage went from 13.3 to 14.5 on my next fill-up. Time will tell.
    John

    So Much to do, So LITTLE cash.
     
  9. BlueKnight

    BlueKnight 1/2 ton status

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    running some split fires in mine. Seem to work great. Alot better than my AC delco's
     
  10. 88Jimmy

    88Jimmy 1/2 ton status

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    I got my Champion Truck Plugs @ PepGirls
     
  11. Jason73K5

    Jason73K5 1/2 ton status

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    I've ran Split-Fires, NGK 4 electrode, Bosch Platinum, Accel, Delco Rapid-Fire and am currently running the Bosch Platinum +4 plugs. They all have done pretty well, and I couldn't tell a whole lot of difference between any of them. I'll probably go back to the NGK 4 electrodes if I ever change them again, I like the design and they last quite a long time for non-platinum plugs. I suggest that you use price and availability as your guide if you're trying to decide between any of these.
     
  12. BillR

    BillR 1/2 ton status

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    I use the Bosch Platinum in mine. They seem to work great. The starter barely has to turn!

    Blazin' in Flagstaff
     
  13. hpfire7227

    hpfire7227 Registered Member

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    I've always ran good ol' AC plugs in all my Chev's. 74 GMC 3/4 ton, 73 pick up w/ .30 over 350, and now my 89 K5. Never ever any problems. I did run Bosch platinums in my...dare I say it...CJ-7, they were excellent also. I think it really comes down to personal preference. Good luck.

    10 BOLTS O' FUN
     
  14. BlueKnight

    BlueKnight 1/2 ton status

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    Wow, looks like Bosch Platinums are winning the poll.
     
  15. Shawn

    Shawn 1/2 ton status Premium Member Author

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    I run Champion Trucks on my 454. The larger ground and electrode seems to eliminate any ping. I've also tried most platinums, and many others but the Champion Truck plugs seems to do the best. Another good plug if you can get it is the old commercial style AC plug (not rapid fire). The # of this plug is CR-42TS. The commercial is designated by a "C", the R stands for resister, the 42 is the heat range, and TS is tapered seat (for cast iron heads). The commercial plug is a requirement for the Syclone/Typhoon trucks which have a 4.3 Turbo which many of these owners swear by.


    Shawn
    <font color=blue>87 K5</font color=blue>
    <font color=red>454, 6", D60, 14 blt, 465, 205</font color=red>
    www.off-road.com
     
  16. laketex

    laketex 3/4 ton status

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    AC Delco. In all seriousness guys, do you really think the high dollar plugs really make a difference in our V8 engines? Sure on a 4 cyl they might, but I have never noticed a difference by changing to platinums or splitfires in a fullsize.

    [​IMG][​IMG]
    Durant, Ok
    '79 Blazer in progress
     

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