Open hood and look at them both. The 6.2l is very wide silly valve train ! It is very wide and not as neat under the hood. The 7.3 has much more room. Basically looks like a ls gm much neater under hood.
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Is your van the new 2.8 duramax, or a v8 duramax? We are looking at a new 2.8 duramax extended van ourselves, a local dealer is getting a quigley reg length 2.8 durmax soon.
Thanks,
Deo
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