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1G Whats the injector hole size for 1g 4g63?

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What parts are you ordering that require the size of the actual hole? The lower insulator’s and Orings are listed on the vendor sites per application and the o rings can be had at the parts store in a Felpro box by simply looking up the application if a standard Denso style injector is being utilized.
 
I grabbed a set of digital calipers and my best (not SUPER accurate) measurements were that the injector "hole" is 10.5mm and the insulator recessed hole is 16.1mm. Both are close but not exact.
 
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