Thanks for the replies. Right now I have big block frame mounts installed on the stock subframe. I have my original small block frame mounts still as well. Just wasn't sure if I needed to swap them out for the small block. I can't use the holley oil pan. Any stroke over 3.62 doesn't have clearance through the holley pan. The LS7 has a 4.0 stroke and if I go with a 454 it has a 4.125 stroke. The Champs pan will clear it though. Talking about the Holley pan, even though they claim it clears the tru turn, there are some on pro-touring.com that have had to modify the holley pan to clear the tru turn.
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