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 ... do so will usually result in increased oil consumption by allowing oil from the ... holes empty into cylinder #3 and #4, oil fouling will be greater on the spark ... must also be transferred. CAUTION: The oil pump in this engine must be primed ... RESULT IF ENGINE IS STARTED WITHOUT OIL OR IF OIL PUMP IS NOT PRIMED ...
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 ... . GVW (NA4) 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 ...