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Home >> GMC >> 1991 >> Rally G2500, 6.2 C, 4L60/MD8 >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Specifications >> Ignition System >> Spark Plugs

Spark Plugs

SPARK PLUG TYPE

Application AC
2.5L (VIN E) R43TS6
2.8L (VIN R) R43TSK
3.1L (VIN D) R43TS
4.3L (VIN Z)
Non-Turbo CR43TS
Turbo CR42TS
5.0L (VIN H) CR43TS
5.7L (VIN K) CR43TS
7.4L (VIN N) CR43TS
SPARK PLUG SPECIFICATIONS

Application Gap: In. (mm) Torque: Ft. Lbs. (N.m)
2.5L (VIN E) .060 (1.52) 17 (23)
2.8L (VIN R) .045 (1.14) 22 (30)
3.1L (VIN D) .045 (1.14) 18 (24)
4.3L (VIN Z)
Non-Turbo .035 (0.89) 22 (30)
Turbo .045 (1.14) 11 (15)
5.0L (VIN H) .035 (0.89) 22 (30)
5.7L (VIN K) .035 (0.89) 22 (30)
7.4L (VIN N) .035 (0.89) 22 (30)