GM 4.3 V6 (Vortec 4300) Firing Order

Firing order: 1-6-5-4-3-2 (165432).

Cylinder numbering: Left bank 1-3-5, right bank 2-4-6

Firing order diagram

TIMING END ▲113553264462Driver sidePassenger side
firing order 1-6-5-4-3-2. The small number by each cylinder is its place in the firing order.

Details

EnginesGM 90-degree V6 4.3 and Gen V 4.3 LV1/LV3
Years1985-2014, LV1/LV3 2014 on
Firing order1-6-5-4-3-2
Cylinder numberingLeft bank 1-3-5, right bank 2-4-6

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