LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2003 >> Impala LS >> Repair and Diagnosis >> Engine Performance >> Specifications >> Engine Controls - Service & Adjustment Specifications >> Ignition Systems >> Spark Plugs
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Spark Plugs

SPARK PLUG TYPE

Application Spark Plug Type Spark Plug No.
3.1L & 3.4L AC 41-940
3.8L AC 41-921
SPARK PLUG SPECIFICATIONS

Application Gap - In. (mm) Torque - Ft. Lbs. (N.m)
All Engines .060 (1.52) 11 (15)
scientia non olet · About LEMON Manuals