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skelliam

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About skelliam

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    SE Michigan
  1. Josey, the 5.3L is an iron block while the LS1 is an aluminum block, right? Looks like the weight penalty for the 5.3L is about 85-100 lbs or so. (This isn't the end of the world IMO.) It looks like there were a couple of variations of the 5.3L that were aluminum, but those seem to be on the rare side.
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