LS engine designation
1967 Pedal Car Champion
Joined: Mar 2020
Posts: 9,005
Likes: 4,161
From: US-PNW
Nowhere Man is spot on. All engines were specified within the L-code group. Air conditioning was listed within the C-group; brakes were within the J-group; transmissions, the M-group; radios/sound the U-group; and so on. There were some options and groups that weren't so clearcut: exhaust, steering, and aluminum wheels are all in the N-group. These groups were used across all of the Chevrolet lines such that option codes could be offered not only on Corvettes but the Chevelles or Camaros or some other model too.
Race Director
Joined: Mar 2017
Posts: 11,905
Likes: 4,476
From: Virginia
LS has become shorthand for all Gen III and Gen IV SBC V8s. When a specific engine is ordered for a vehicle, 3-digits were used, such as LS1, LM7, LQ9, LS6, etc.
Gen V SBCs are now LT engines, reusing yet more names and adding more confusion. How many LT1s and LT-1s have there been now?
Here's hoping that the Gen VI engines bring back the L48 and L82 names.
Gen V SBCs are now LT engines, reusing yet more names and adding more confusion. How many LT1s and LT-1s have there been now?
Here's hoping that the Gen VI engines bring back the L48 and L82 names.
1967 Pedal Car Champion
Joined: Mar 2020
Posts: 9,005
Likes: 4,161
From: US-PNW
The ZQ3 is not an engine code, but a package code that denoted standard level components and trim. You couldn't order the standard engine separately - just like you couldn't order standard brakes or standard steering, they just were. Additionally, the ZQ3 code, as far as I know, is only called out on the assembly order and not listed in any of the option codes as we are discussing here.
