Firing order 1-6-5-4-3-2
The firing order for the 4.3L engine is 165432
The firing order for the 4.3L engine is 1 6 5 4 3 2
18436572
We need to know size engine you have.
1-6-5-4-3-2 clockwise on the distributor.
1.8.4.3.6.5.7.2
Firing order is 1-5-3-6-2-4
18436572
1,5.3,6.2,4
18436572 NEW ANSWER: If it is the new style engine, Then the firing order is 1-8-7-2-6-5-4-3 1-8-4-3-6-5-7-2 firing order is for the engines that have a Distributor.
1-8-4-3-6-5-7-2
1, 6, 5, 4, 3, 2.