SP604EC Economy Valve Spring Kit

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SKU: SP604EC

For the racer on a tight budget, this is a better option than the hit-and-miss consistency of a box of springs from GM.

This NEW set of 16 springs is matched at exact poundage.

These springs undergo the entire test cycle that our SP604-20+ springs do, but they fall short of our standard criteria for upper RPM stability.

All springs are from the GM 19420455 and in no way aftermarket or 'cheater' springs.

Note: Economy (EC) springs may need replaced more frequently than SP604-20+ or SP604-6800.

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Pricing: $65.00

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