Intake Manifold Bolt Kit Chevrolet LS1, LS4, LS6, 4.8L-RL4, 5.3L-LM7, 6.0L-LQ4, 4.480˝ UHL, 8740, 12pt - 4.8L / 5.3L / 5.7L / 6.0L Gen III Engines Kit #: 130-2101 SpecificationsSocket Size(s)8mm 12pt.
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