Im looking for a compact V8, First thoughts were LT1/LS1. The more I looked at the LS1 the more I realized they are quite expensive, even from a JY. The LT1 is much more in my price range, but the more I thought about it, there is also the vortech engines. So this gets me to my question. How do the 6.0 and 5.3 vortech engines compare to the LT1 in physical dimensions? Are they based off the same block? or are the completely different and not anywhere close in Size of the LT1? Im mostly interested in the 6.0, it seems like it could be a bored and stroked version of the LT1, but it has an aluminum block like the LS1 correct?