We did switch our v8 race engines to the LS firing order.
C&p
Why change firing order? Changing a 1-8-4-3-6-5-7-2 engine to a 4/7 swap sometimes makes a tiny bit of extra power. Swapping both 4/7 and 3/2 reduces crankshaft harmonics and evens out the load on the crankshaft mains, which can lead to smoothness and longevity.
