1927 LaSalle 303 firing order

[jpm123]

Does anyone know the correct firing order for a 1927 LaSalle 303.  The cylinders are numbered (stamped on the heads) from front to back on the left (driver’s side) 1-4-6-3, and on the right (passenger’s side) 8-7-5-2).  But I can’t find documentation for the correct firing order anywhere.

Any help with this or any other helpful hints in setting up the distributor would be greatly appreciated.
Thanks
John Micciche

[Steve Passmore]

According to what I've read it actually fires on those numbers!  seems a little confusing.

[Johan Boltendal #158]

1L=4R=4L=2L=3R=3L=2R=1R in this sequence the driver side front cylinder is nr 1

the nrs on the head are the cylinder nrs used by Cadillac , as used in 1- 2- 3 -4 etc giving the firing order in that system 1 is 1L nr 2 is 4R nr 3 is 4L etc
Steven is right the engine fires in that order.
this info goes for the laSalle 340 but should be OK for the 303 as well. Johan

[Wayne Womble 12210]

Most all v8s have the same ninty degree crank arrangement and thus the same firing order.  That one is obviously no different.  The numbers on the head indicate a firing order of 12345678, which is all your really need to know. 

With the 90 degree crank, there are always two cylinders at TDC at the same time. Either of those can be made to fire on that stroke with the other on the off stroke. Number one is usually the first cylinder furthest forward on the block. That is usually the Left front. Modern GM engines usually are numbered Odd on the left (1357) and even on the right (2468) Most GM firing orders are 18436572 or sometimes they switch 4 and 7 for performance reasons. Thus 18(7)365(4)2.  That is exactly what you have with your engine. No matter how they have it numbered, it is still the common firing order.

[jpm123]

Thank you all for your comments. Now I understand how this works.
John Micciche