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Please show me what firing order is for a 1987 chevy blazer 8 cylinder 350 engine

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Jan 06, 2016 | GMC Cars & Trucks

1 Answer

I have a 1985 Chevy 350 with an ac delco hei distributor and i have the plug wires crossed up somewhere. I need a diagram to show the correct plug wire placement please. Thanks

This should do it.
You can also do an internet search for a standard 350 Chevy engine.
The firing order is 1-8-4-3-6-5-7-2
The order is the same for engines from the mid 1990s back to the late 1970s.


Jan 16, 2013 | Cars & Trucks

1 Answer

Firing diagram for chevy 350

Here is a firing order diagram and let me know if you require any further assistance.


Oct 25, 2010 | 1987 Chevrolet Blazer

2 Answers

Please show me the position of the #1 spark plug wire on the 95 350's distributor

If you are talking about a 350 Chevrolet (GM) engine, the #1 plug is at the drivers side front. To find the position on the cap, turn the engine 'till the timing mark on the lower pulley points to 0 on the scale, then check rotor position in the distributor. If it's pointing towards the firewall, make one more turn. The firing order goes in the direction the rotor turns when cranking the engine over. 18436572.

Jun 28, 2010 | Cars & Trucks

2 Answers

I need a diagram for firing pattern for a chevy 350 motor

For the 1987 Chevrolet Blazer 350 (5.7L):

Firing Order:


Distributor Connections:

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at!

Jun 19, 2010 | 1987 Chevrolet Blazer

2 Answers

Is the firing ordor the same as a chevy 1500 for an 89 chevy blazer

If they are small block V8's the firing order is 15836572.
305 or 350 the same order.

Oct 30, 2009 | 1993 Chevrolet C1500

1 Answer

Change plugs and wire and engine will not acclerate. This is a built 350 short block chevy with pro charger.

350 Chevy engine in what? 1990 Corvette? Who built it, did you?

Sounds as though you have plug wires wrong.
Firing order is 1-8-4-3-6-5-7-2

Distributor Ignition System:
Distributor rotates Clockwise. (Rotor)
Find Number 1 tower on distributor cap, go Clockwise with Firing Order.

Distributorless Ignition System:
VIEWING the engine from the Front of the car.

Spark plug wire connections along the back, starting from Left side going to Right side;

Spark plug wire connection towards the Front of the engine;

(To guess I would say you have 5 and 7 wires switched)

Left side cylinder order is 1-3-5-7, going from front to back.
Drivers side is Left side.
Right side cylinder order is 2-4-6-8, going from front to back.

Oct 13, 2009 | 1990 Chevrolet Corvette

3 Answers

1990 chevy 350 distributor wiring diagram and firing order

The firing order is 1-8-4-3-6-5-7-2.
The distributor rotates in a clockwise direction. The engine must be on the compression stroke on the #1 cylinder. Line up the timing marks. Remove the cap and the rotor should be pointing to approximately the 5 o'clock position.

Good Luck

Mar 06, 2009 | 1990 Chevrolet C1500

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