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Sourced from NISMO years ago. Inner spring set for U20.  Use these with your stock outer spring.  These will increase both seat and nose pressure by 12-15lbs. 


Photo is for reference only, this is a set of 8 inner springs.  Best quality!


note: If you are using a high lift cam you MUST check for coil bind



"Datsun Comp" Inner valve spring for U20

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