LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 1990 >> Forward Control 4.3 Z, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Specifications >> Ignition System >> Spark Plugs
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

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) CR43TS
5.0L (VIN H) CR43TS
5.7L (VIN K) CR43TS
7.4L (VIN N) CR43RS
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) .060 (1.52) 22 (30)
3.1L (VIN D) .045 (1.14) 18 (24)
4.3L (VIN Z) .035 (0.89) 22 (30)
5.0L (VIN H) .035 (0.89) 11 (15)
5.7L (VIN K) .035 (0.89) 11 (15)
7.4L (VIN N) .035 (0.89) 11 (15)