LT1 motor with a code ending in WHJ

[Brad York]

i have a LT1 motor with a code ending in WHJ. Does anyone know what that means? Been browsing for some time and haven't came close to seeing what it means.

 

[63Half-ton461]

You will find the definition in a "factory" service manual in the fist chapter under engine ID for that specific year.

 

[hurst01]

Just for my own information, what version of the LT1 do you have? Is it the early 70/s or the mid 90/s? Two completely different engines but both were LT1 engines. One carbureted with a flat tappet cam and the other fuel injected with a roller cam.