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The worn-out factory valvesprings and timing chain had to go. After consulting with LT1 engine builder Chad Golen at Golen Engine Service, we opted for COMP Cams' double valvesprings (PN 987-16), 1.437 Steel Retainers (PN 740-16), 11/32 Super Locks (PN 613-16), and Spring Seats (PN 4770-16).... View Related Article
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