Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - '93 Chevy 350CI spark plug depth
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Old 07-06-2012, 05:10 PM
lmsport lmsport is offline
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The plug for a later model GenI Vortec engine is an APP 605. It has the .705 reach whereas the App 25 is a .465 reach plug.
Do you have Vortec heads(8 intake manifold bolts, not 12)?
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