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The Scat rotating assembly is set up for external balancing, but being the race engine builders that they are, the SAM opted for internal balancing, which required adding two slugs of heavy metal and a neutral-balanced 429-style flexplate. Judson says that internal balancing offers a slight advantage in longevity at high rpm, but concedes the benefit is very minor in a 7,000 rpm street/strip motor such as our 532. View Related Article
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