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Hi
Just picked up a new project car 71 GS 455 coupe. made in Flint Michigan and exported to Canada. I have the option sheet from GM of Canada Vintage vehicle services. I see L74 which is straight forward. the one I am not sure of is WE4 GS 455 , they both state 455 engine . why the two codes. thanks Al ![]() ![]() ![]() |
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