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Randy
Randy, Auto Mechanic
Category: Car
Satisfied Customers: 216
Experience:  30 years experiene. I can even diagnose and repair LP and CNG powered vehicles.
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Ignition timing & firing order for 1991 topkick 6.

Customer Question

ignition timing & firing order for 1991 topkick 6.0 or 366 cubic inches
Submitted: 9 years ago.
Category: Car
Expert:  Randy replied 9 years ago.
Customer Randy here,Laughing

The firing order for you engine is the same as ALMOST every other GM V8. That would be 1-8-4-3-6-5-7-2 with a CW rotation. Hope this helps.

Randy

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Customer: replied 9 years ago.
thanks for the help