6.2L LS3 V8 · Valve Spring
Valve spring seat pressure (valve closed)
Specification
Production / metric 400 N (90 lbf)
Production / imperial 90 lbf
Measured with Spring tester.
Notes
About 400 N per the application manual; confirm the exact value and the open pressure from SI Engine Mechanical Specs.
Sources
- GM Powertrain Gen IV V8 Engine OEM Application Manual (2011, issue 24AU10)
- GM Service Information: Engine Mechanical Specifications (6.2L LS3), Document ID 2055077
Values are cited as facts. We do not reproduce the manufacturer's prose, table layout, or diagrams.