The Chevy 454 big block V8 is an iconic powerhouse in American automotive history, and it sat under the hood of some absolute GM classics.

However, there is one particular example that often goes overlooked in conversation, and we feel it stands as an unsung hero ...

The Big Block. Rat Motor. Call it what you will, we can now officially add a final epitaph to the long-running engine's gravestone: R.I.P. The final L18 big block rolled down the assembly line at ...