Thread: V6 3.4 or 4.3 How can you tell
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11-22-2010 06:48 PM #1
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V6 3.4 or 4.3 How can you tell
I have a chevy v6 that I'm not sure if it's a 3.4 or 4.3. It came out of a S10 but not sure of the year. Looking on the web I can't find a site that will help with the ID numbers. How can you tell if it's a 3.4 or 4.3?
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Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance