450 hp L72 rating

[Keith Tedford]

Don't take anything that I say as difinitive. GM was too good at throwing curves for us to be too sure of anything that they did. However, three of us bought COPO Chevelles from the same dealer and none had decals under the hood other than the Tonawanda sticker on the passenger valve cover. The dealer didn't even know what the horsepower rating of the engine was. Here is a day one shot of one of the engines.