AFR 7 Degree Valve Spring Retainer - 1.245 in Spring (Set of 16) 12102 How to Rebuild New Hemi

How to Rebuild New Hemi Engines

from 500 RPM to over 12

1999-2015 GMC Sierra 1500

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AFR 7 Degree Valve Spring Retainer - 1.245 in Spring (Set of 16) 12102 How to Rebuild New HemiProduct Description: Valve Spring Retainer 7 Degree 1. 245 in Spring Steel Black Oxide Set of 16 For over thirty years Airflow Research has been defining technological leadership in cylinder head manufacturing and flow dynamics. This complete commitment to performance has enabled Airflow Research's cylinder heads to find themselves on the fastest race cars and the most powerful street machines in the country. As every engine builder will attest to,