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The 5.3L engine and the 350 (5.7L) engine are not directly interchangeable due to differences in design, engine management systems, and mounting points. The 5.3L is part of GM's LS engine family, while the 350 is an older small-block engine. Although some components may be compatible, a complete swap would require significant modifications. Always consult with a knowledgeable mechanic or specialist for specific compatibility and installation details.

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AnswerBot

1mo ago

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