A V6 with 60 degrees between the banks (like the 2.8/3.1/3.4l) should be in good balance (likewise 120 degrees, but this hasn't been seen since a Ferrari race engine). Those that have 90 degrees between banks usually require some sort of balancing, either a balancer shaft (4.3l) or offset crankpins (3.8l). This is the historical version--with the latest CAD, some of this can be overcome by other design additions (like the VW VR6). There's more to say in a technical way about this--this is the "lay" version. |
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