All indications from researching is that its a 2006 crate motor that someone started to rebuild with some top of the line GM aluminum heads. These are the parts you are looking at in these three pics. Parts let to go on. Roller Rockers – New camshaft – New valve covers – New gaske...
Vortec 7400 engines were the final version of the 454 used in production vehicles or trucks. However, Chevy still offers the 454 big block V8 as a crate engine. You can source the454 HO directly from Chevrolet. Despite the 454 being introduced nearly 52 years ago this crate engine still sh...
Now cams are a point of view that no-one seems to agree with me on. I trust my handy engine software simulator. It tells me what my seat of the pants confirms - up to a point (about 250 degrees of duration at 0.050" for a big block) if you have good heads, you will build pow...