On the Ford 7.5 liter / 460 cubic inch gasoline V8 engine :
firewall
4 - 8
3 - 7
2 - 6
1 - 5
front of vehicle
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Also :
The firing order is ( 1 - 5 - 4 - 2 - 6 - 3 - 7 - 8 )
The distributor rotor turns COUNTERCLOCKWISE ( when looking from the TOP )
The marked # 1 position on the distributor cap faces towards the REAR
right side
which is cylinder number two on gmc envoy 5.3 litre
drivers side of engine , cylinder nearest firewall
The 3.0 liter V-6 engine number three cylinder is on the left hand side of the engine. The number three cylinder will be the middle cylinder.
The Ford 2.3 liter is a 4 cylinder engine
Ford V8 engine : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front
The number 7 cylinder is on the driver side of the engine. It is the next to last cylinder towards the firewall.
It is the second one back on the passenger's side of the engine.
right bank, rear cylinder
On a Ford 7.5 liter / 460 cubic inch V8 engine : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
It is the far passenger side.
Passenger side, front of engine.