LT1 Cylinder Numbering
Safety Car
Joined: Mar 2018
Posts: 4,754
Likes: 1,650
"Active Fuel Management (AFM), which shuts down the LT1’s firing cylinders from eight to four by disabling the valves to the cylinders, also brings the efficiency of the 6.2L pushrod motor to never-before-seen heights. When AFM commences, the engine turns the 6.2L V8 into a 3.1L V4, shutting down cylinders 1, 4, 6 and 7, and firing only cylinders 8, 2, 5 and 3 in that order. Otherwise, the complete firing order is 1, 8, 7, 2, 6, 5, 4, 3.
source:
http://gmauthority.com/blog/2012/10/...ction-and-afm/
source:
http://gmauthority.com/blog/2012/10/...ction-and-afm/
Racer
Joined: Jan 2009
Posts: 395
Likes: 194
From: Goderich, ON
V-configuration engines have to have one bank further forward than the other, the frontmost cylinder will be #1. I havent removed the top engine cover to verify, but I would guess that #1 is still front drivers side like always.
