Industrial Injection GM Performance Valve Spring Kit For 01-16 6.6L Duramax 130lb. - 44B801The Industrial Injection Duramax 130lb. Performance Valve Spring Kits were designed with performance in mind. We recommend this valve spring kit for engines that are pushing over 45psi boost and or 3200rpm. This performance valve spring kit will help prevent valve float, there for allowing your truck to run more efficiently and make more power safely. This comes as a complete kit with conical valve springs, billet steel retainers, chromoly spring
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Industrial Injection GM Performance Valve Spring Kit For 01-16 6.6L Duramax 130lb. - 44B801