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Old 06-23-2019, 11:25 AM
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Tommy Tommy is offline
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Default Valve spring diameter question

The new trick flow aluminum double hump heads have two sizes of valve springs available, 1.460 and 1.470. I've looked at the specs on both heads and can't see a difference except for the spring. The heads with the smaller spring are more expensive and I'd like to know which spring is preferred and why.

Tommy
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