chev 4-7 firing order change

SSDiv6 · 11-22-2018, 10:14 PM

There is more than swapping the camshaft and spark plug wires involved in the firing order swap.
Many times the engine will not pick up power due to the intake type used, dual plane versus single plane and it may require a change on the location of each header tube at the collector.

Here is a good article that addresses the subject:

https://www.enginelabs.com/engine-te...r-your-engine/

11-22-2018, 10:14 PM	#9
SSDiv6 VIP Member Join Date: Feb 2003 Location: Glendale, Arizona Posts: 3,036 Likes: 710 Liked 1,538 Times in 575 Posts	Re: chev 4-7 firing order change There is more than swapping the camshaft and spark plug wires involved in the firing order swap. Many times the engine will not pick up power due to the intake type used, dual plane versus single plane and it may require a change on the location of each header tube at the collector. Here is a good article that addresses the subject: https://www.enginelabs.com/engine-te...r-your-engine/