Firing Order

[Gcompo]

I have a 67 OMC 4cyl I/O..does anyone know what the firing order is?
Thanks

 

[Haut Medoc]

Re: Firing Order

Since the dawn of time the firing order for a GM 3.0 has been 1-3-4-2.....​

 

[Bondo]

Re: Firing Order

Ayuh,..........

What He Said,....... For All the Chevy boat motors.......

 

[Don S]

Re: Firing Order

The above is correct, assuming you have an inline 4 120, but if you have that V4 90 ????????????