The spark plug gap for a Chevrolet Tahoe 5.7 350 Vortec should be set at .060 inches. This spark plug will be purchased preset from any auto parts store.
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Mine is out of a 02 Tahoe it is 0.060 in
The recommended spark plug gap, for your 1994 Chevrolet engine, is .011. Most spark plugs will come from the store pre-gapped.
its .060 for the 5.7 liter a.k.a 350 vortec engine, if youre using platinum plugs, then they are pre gapped from the factory.
It is on the right head beside the back spark plug.
.060
The spark plug gap for a GM vortec V6 is .060
Try looking in a Haynes repair manual for that vehicle. Maybe Autozone can print one out for you.
A 2009 Chevrolet Silverado with the 5.3 engine requires a .040" spark plug gap.
ac delco 45 or higher
ac delco a541e