6.2L LS3 V8 · Valve Cover
Ignition coil bracket bolt
Tightening procedure
- Torque 106 lb-in · 12 N·m
Notes
Four per bracket / per bank. Catalog PN: GM 12554211 per figure GM00-059 callout 511 / figure GM03-350 callout 511 — "STUD,IGN COIL BRKT(HFH,M6X1X18)(M6X1X18.5X14)(ACDelco #12554211) — Required: 10, Y 6.2W(LS3) (2008-2011). M6x1.0 stud, 18mm long (head) + 14mm long (thread). Holds the per-bank ignition coil bracket to the valve cover studs. Also serves as fuel rail mounting stud on LS3 (same SKU appears in GM03-350 as fuel rail mounting)."
Sources
- GM Fastener Tightening Specifications (6.2L LS3), Document ID 2296270
- 2011 Chevrolet Corvette Parts Catalog (GM Professional, Dec-11 supersedes May-11)
Values are cited as facts. We do not reproduce the manufacturer's prose, table layout, or diagrams.