anyone running these Bosch plugs? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dubie · 06-17-2003, 08:46 AM

I was reading up on these and wondered if any of you guys run these?

yellowgmc · 06-17-2003, 09:23 AM

from what i have heard the really don't make any difference. i've used the regular bosch platinum before and they have been good plugs for the most part. they seemed to foul quickly. that was probably the car tho. i put regular plugs in after the boschs and felt the same power gain. they might help in high horsepower apps but in our engines the just look good.

sbc350gearhead · 06-17-2003, 09:40 AM

They last longer simply for the fact that they have multiple electrodes to wear down. The electrodes will shroud the spark though. The two electrode version is almost identical to the ones used on new toyotas from the factory.

Mike C · 06-17-2003, 10:11 AM

I had a set of Bosch Platinums in my 84 Corvette. After awhile it started running like crap, so I pulled the plugs to inspect. The center electrode had slid out and completely grounded one plug, and had reduced the gap in two others. If it had been without the groundstrap, the platinum would have fallen out in the motor! I know run Denso, NGK, or Autolite plugs.

ckhd · 06-17-2003, 10:26 AM

I run regular bosch platnums. Never had a problem with them, and I can feel the difference. If the center electrode is falling out, I'd bet that you tried to gap them... right? Buy them pre-gapped.

I don't buy that muliple electrode bullcrap. It still only makes one arc, no matter which electrode it picks for that particular arc. IMHO, splitfires are a complete and total waste of money, and Bosch platinum +2 and +4 are just extra expense. Buy the single electrode bosch platinums and DON'T GAP THEM! It breaks the platinum and causes it to fall out.

sbc350gearhead · 06-17-2003, 10:29 AM

I have run the regular bosch platinums in various vehicles with good success, and they are fairly cheap as well.

*racedvl* · 06-17-2003, 11:24 AM

I got a set for 68 stepside, he loves them. Also, I installed them on all the 2.5 \ 2.3 Ford 4 clyinders at work. Because I plan on never changing those things again!!!! If any of you have ever done plugs on a 4 clyinder, that needs 8 plugs, you know what I mean. BTW, I find that pulling the throttle body is the easiest way to get to them. BTW, if anyone ever needs to do a timing belt on one. . . . . I can walk ya throught it. . . . .

lngbed71 · 06-17-2003, 12:05 PM

I just pulled my bosch's, and replaced them with good ol' Champions The old plugs were gummed-up dirty and icky. Those were new last year and the truck ran like S*%$ this year and I didn't even drive it last winter at all. the truck made a different sound with the ickies, much better now. Just my .02

06-17-2003, 08:46 AM	#1
dubie Registered User Join Date: May 2000 Location: Flin Flon, Manitoba, Canada Posts: 8,855	anyone running these Bosch plugs? I was reading up on these and wondered if any of you guys run these? __________________ My name's Tim and I'm a truckaholic My 56 Chevy shop truck build http://67-72chevytrucks.com/vboard/s...d.php?t=562795

06-17-2003, 09:23 AM	#2
yellowgmc Getting cabin fever?!?!?! Join Date: Oct 2002 Location: chisholm, mn Posts: 1,679	from what i have heard the really don't make any difference. i've used the regular bosch platinum before and they have been good plugs for the most part. they seemed to foul quickly. that was probably the car tho. i put regular plugs in after the boschs and felt the same power gain. they might help in high horsepower apps but in our engines the just look good. __________________ Member of the Discs Up Front Club 1972 GMC 1500 1994 F-150 XL 4x4 Tact is for people not whitty enough to be sarcastic

06-17-2003, 10:11 AM	#4
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,715	I had a set of Bosch Platinums in my 84 Corvette. After awhile it started running like crap, so I pulled the plugs to inspect. The center electrode had slid out and completely grounded one plug, and had reduced the gap in two others. If it had been without the groundstrap, the platinum would have fallen out in the motor! I know run Denso, NGK, or Autolite plugs. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

06-17-2003, 10:26 AM	#5
ckhd Registered User Join Date: Oct 2000 Location: St. Johns, Arizona Posts: 2,660	I run regular bosch platnums. Never had a problem with them, and I can feel the difference. If the center electrode is falling out, I'd bet that you tried to gap them... right? Buy them pre-gapped. I don't buy that muliple electrode bullcrap. It still only makes one arc, no matter which electrode it picks for that particular arc. IMHO, splitfires are a complete and total waste of money, and Bosch platinum +2 and +4 are just extra expense. Buy the single electrode bosch platinums and DON'T GAP THEM! It breaks the platinum and causes it to fall out. __________________ my 2¢ - t.i.o.l.i. Bowen 1968 K20 fleet 1969 K10 swb fleet 1972 K10 Suburban 1972 C10 lwb step 1992 K1500 'burb 1995 K2500 'burb 1997 C1500 'burb 1999 K1500 2000 K1500 'burb Why do I own so many Suburbans?

06-17-2003, 12:05 PM	#8
lngbed71 Nothing fits but the oil Join Date: Mar 2003 Location: Gaston, Indiana Posts: 424	I just pulled my bosch's, and replaced them with good ol' Champions The old plugs were gummed-up dirty and icky. Those were new last year and the truck ran like S*%$ this year and I didn't even drive it last winter at all. the truck made a different sound with the ickies, much better now. Just my .02 __________________ Land of the free Because of the brave

06-17-2003, 09:40 AM	#3
sbc350gearhead Registered User Join Date: Mar 2003 Location: Columbus Ohio Posts: 1,413	They last longer simply for the fact that they have multiple electrodes to wear down. The electrodes will shroud the spark though. The two electrode version is almost identical to the ones used on new toyotas from the factory.

06-17-2003, 10:29 AM	#6
sbc350gearhead Registered User Join Date: Mar 2003 Location: Columbus Ohio Posts: 1,413	I have run the regular bosch platinums in various vehicles with good success, and they are fairly cheap as well.

06-17-2003, 11:24 AM	#7
racedvl Account Suspended Join Date: Jan 2000 Location: Woodstock, IL Posts: 7,020	I got a set for 68 stepside, he loves them. Also, I installed them on all the 2.5 \ 2.3 Ford 4 clyinders at work. Because I plan on never changing those things again!!!! If any of you have ever done plugs on a 4 clyinder, that needs 8 plugs, you know what I mean. BTW, I find that pulling the throttle body is the easiest way to get to them. BTW, if anyone ever needs to do a timing belt on one. . . . . I can walk ya throught it. . . . .

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