6.2L LS3 V8 · Engine Block

Engine block oil gallery plug

Tightening procedure

  1. Torque 44 lb-ft · 60 N·m

Notes

Catalog PN: GM 12573460 per figure 1Y00-083 callout 111 — "PLUG,ENG BLK OIL GAL(15.68MM DIA)(INCLS O-RING SEAL(N.S.S.) — Y 6.2W(LS3) (2008-2011). 15.68mm diameter, includes O-ring seal (not serviced separately)."

Sources

  • GM Fastener Tightening Specifications (6.2L LS3), Document ID 2296270
  • 2011 Chevrolet Corvette Parts Catalog (GM Professional, Dec-11 supersedes May-11)Captured 2026-05-28

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