390Express
Regular Contributor
Does anyone have a source document that states what the firing order for the 454 XL TBI engines is?
I believe Crusader uses a GM supplied intake manifold, and there is a firing order stamped on the intake. I just want to confirm that the firing order stamped on the intake is in fact the correct firing order, (I believe it is a standard GM firing order) and make sure that the cam is not calling for a 4/7 swap, like many marine engines do.
I believe Crusader uses a GM supplied intake manifold, and there is a firing order stamped on the intake. I just want to confirm that the firing order stamped on the intake is in fact the correct firing order, (I believe it is a standard GM firing order) and make sure that the cam is not calling for a 4/7 swap, like many marine engines do.