GOODWRENCH SERVICE REPLACEMENT ENGINES Section V Page 88 August 2004 ... G (LB4)(4.3Z) 1985 Chevrolet, GMC C1,2 G1,2 K1, M1 (LB1)(4.3N) Engine- ... Specific Content: Oil Pump Notes: Includes 21-PSI Oil ... the first service interval including an oil and filter change should be between 300 ... and 500 miles. Replacement of oil related parts: If the original engine ... or due to bearing failure, the engine oil cooler MUST BE REPLACED and the oil ... lines and remote filter adapter MUST BE REMOVED from the vehicle and ... Brite) is the number one cause of 4.3L engine failure. Intake Manifold: For some ... engine assemblies (see service manual), sealer ... do so will usually result in increased oil consumption by allowing oil from the ... engine valley to be drawn into the intake ...
GOODWRENCH SERVICE REPLACEMENT ENGINES Section V Page 89 August 2004 ... G (LB4)(4.3Z) 1987 Chevrolet, GMC CK1, R1,2, V1, RV1 (LB4)(4.3Z) 1987- ... 89 Chevrolet, GMC M1 (LB4) 1988 Chevrolet, GMC CK1,2, ... 3, V2 (LB4)(4.3Z) 1988-91 Chevrolet, GMC ST1 (LB4)(4.3Z) 1989-91 Chevrolet, ... GMC CK1,2 (LB4)(4.3Z) Exc. Emis. above ... 8500lb. GVW (NA4) 1987-90 Chevrolet, GMC G1,2,3 (LB4)(4.3Z) 1990 Chevrolet, ... GMC LM1 (LB4)(4.3Z) 1991 Chevrolet, GMC G1,2,3 (LB4)(4.3Z) Exc. Emis. above ... 8500lb. GVW (NA4) Engine-Specific Content: Oil Pump Notes: Includes 21- ... PSI Oil Pressure Bypass Valve. INSTALLATION ... the first service interval including an oil and filter change should be between 300 ... and 500 miles. Replacement of oil related parts: If the original engine ...