GM Rocker Arm Spacer Kit For 01-16 Duramax Industrial Injection FORD VF519 FORGED 18X9 108-121 POL
GM Rocker Arm Spacer Kit For 01-16 Duramax Industrial Injection FORD VF519 FORGED 18X9 108-121 POLThe Duramax Rocker Spacer Kit was designed to eliminate the factory springs in between the rockers to keep the rockers properly aligned to OE spec under high load and high rpm conditions. The factory springs allow the rocker arm shafts to move around which can cause improper valve lift and irregular wear on the valves and rocker arms. Our high performance rocker arm spacers prevent this from happening and allow your engine to operate more efficiently
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USA
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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24