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Old 08-14-2019, 10:36 PM
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OK, the LH6 is a replacement for the LM4 which is also an aluminum block. According to my research the LH6 is a cathedral port head so the "LS1" style 5.7 intake will fit. Search around and you should be able to find an intake for under $200. The oil pan can be replaced by many other shorter pans. Again, research and you should find what you are looking for. Go with the stock GM parts because they are cheaper.
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