4.8 or 5.3
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Teching In
Joined: Jan 2015
Posts: 8
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4.8 or 5.3 
if your not sure if its an iron block 4.8 or 5.3, buy a $15 bore scope that plugs into your laptop with a usb end. I used windows movie maker. this is my 5.3 thru the spark plug hole. dish on piston tells me its a 5.3. 4.8 piston has no dish. its cheep and you can find problems without removing anything but spark plugs. mine was made in china.
Last edited by old guy 2; Nov 2, 2016 at 05:51 PM.
