Tune Up Parts Numbers

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k_pro1992

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what ngk plugs do i use? the g power, v power, or the iridium ix?

*on a 1997 350 vortec.
 

Arcane

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Good, the can survive after bad gas station. But i heard from local dealer that there were cases when you put new plug and it's not working. as for the other brands, i tried Accel U-Groove. Good perfomance but poor quality. Had a misfire in 2 cylinders after 10k. Thought bad luck, but when my friend told me he had the same at 5k, well, no more questions. Bought Accel double platinum. Already 15k miles, so far so good.
 
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WFO4X4

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Are the stock acdelco plugs any good ?

delco's are the only mfg recomended plug for your truck. cost wise, its been the best plug. not the hottest, but one of the longest lasting and consistant. no complaints and never had a failure from one other than just life span used up
 

agent319

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Picked up my chilton manual while doing my tune-up on my 1998 5.7 Vortec and it said the sparkplug gap should be .035 but I got to O'reilly's Auto and they said .060. Who's right?
 

Chris

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Picked up my chilton manual while doing my tune-up on my 1998 5.7 Vortec and it said the sparkplug gap should be .035 but I got to O'reilly's Auto and they said .060. Who's right?

.060" for anything with Vortec heads.
 

adambru

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What's the part number for left (drivers side) exhaust manifold for a 98 gmc sierra 5.7 vortec ¿? Thanks
 

kamokevin

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