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04-03-2010, 01:47 PM #1
what is proper plug gap on a 98 vortec 5.7?
i am going to install a new set of plugs on my 98 silverado. i dont have a manual. i am looking for the proper spark plug gap for a vortec 5.7L?
14 bolt posi rear, with 373s
33" wild countrys
tube steps, chrome kit, fenderflares,
chrome diff plate, window flares,
2-10"Alpine TypeE, Alpine 450watt V-Power.
04-03-2010, 02:01 PM #2
04-03-2010, 04:53 PM #3
okay thanks. to be honest ive never changed plugs on a car/truck before, just powersports and power equipment where i always double check the gap.
04-03-2010, 09:49 PM #4
I would still double check the gap on them. And if you are going with factory AC delco plugs which work well in the Vortec motor then absolutely be sure you check. I just did them on my 1988 and they were gaped at .45.. Just a heads upMike
1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).
2009 Saturn Aura XE (wifes car)
2011 F-150 Crew 4X4
"Hold it to the floor till you see God.... Then Brake!!!!"
04-03-2010, 10:17 PM #5
- Join Date
- Nov 2009
- Grandview, WA
I looked in the Manual it is .060 inch gap.
04-03-2010, 10:18 PM #6
OH no i meant the new ones out of the box were gapped at .45... just warning for a double check before installing the new ones.. The ones that came out were just plain old shot on my truck...
04-04-2010, 09:06 PM #7
- Join Date
- Jan 2010
changed mine yesterday and was gapped at .060 out the box. i did double check before i left the store though
04-04-2010, 10:16 PM #8
Gotta love it.. they might actually be a bit different for the newer models... so who knows..
04-04-2010, 10:24 PM #9
04-04-2010, 10:26 PM #10
See hence why i was WAAAYYY off... HAHA oh well elasson learned
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