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**Classic v6 GMC's** · 12-05-2015, 10:27 PM

Our 292 has casting number 3994256 and F0329XAE

So the casting is 64-77 and the F0329 is flint march 29 but what is the XAE ?

12-05-2015, 10:27 PM	#12
Classic v6 GMC's Senior Member Join Date: Mar 2015 Location: Arizona from Overland Park Kansas Posts: 3,968	Re: engine code straight6 Our 292 has casting number 3994256 and F0329XAE So the casting is 64-77 and the F0329 is flint march 29 but what is the XAE ?