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Username Post: Spark plug gap 45-60?        (Topic#276828)
Posts: 90

Loc: Las Cruces,New Mexico
Reg: 06-16-03
02-22-12 01:06 PM - Post#2193902    

96 Sub 5.7 vortex 4wd 1/2 ton. The chiltons manual says 045 gap but autozone site says 060. What is right? The underhood label is gone.Have them set at 045 now but power seems a bet down.

84 K10 350/350 208TC 33" Tires 4" lift

Low priced Genuine GM Auto Parts
Posts: 27262
Age: 45
Loc: Texas
Reg: 08-01-03
02-22-12 01:19 PM - Post#2193905    
    In response to Al-fourx

.045 would be where I would set them. You can run a wider gap but you're putting a strain on the rest of the ignition system to do so. Not a great idea.

Which plugs did you buy? Anything other than factory spec AC Delco 41-993 platinums, I would be reconsidering what I bought.

If power is down, time to check air filter, fuel pressure, possible exhaust restriction, etc. and general state of tune.


06 Silverado SS / 06 Chrysler 300C SRT8 / 06 Dodge Magnum SRT8

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