LS1 firing order

[Greg Hermann]

>Joe Boucher wrote:
>>
>> Here's a guess.  Back in the carb days you could have a problem with the
>>number 5
>> cylinder stealing some of the fuel charge from the number 7 cylinder,
>>leaning out the
>> number 7.  With fuel injection at the intake valve, that shouldn't be
>>that bad of a
>> problem.  There are crankshaft vibration considerations of the firing
>>order that are
>> orders of magnitude above my head.
>>
>
>You're on the right track...   Here's a blurb from one of the rags...
>
>"The LS1 uses a revised firing order that solves the small-blocks
>long-standing problem of adjacent cylinders firing in succession.
>The revised firing order improves idle quality and reduces
>engine vibration."

Bet it improves heat distribution in the heads not to have adjacent
cylinders firing in order too!
>
Greg