Check out this Edelbrock 409 Chevy engine as it undergoes heavy modifications. It features brand new Edelbrock cylinder heads, JE forged pistons, and a lot of modern technology! Check it out at ...

But many people don’t know that, starting in 1962, Chevy also made a detuned version — much lower compression, with a two-barrel carb — for the bigger trucks.

The 409 came in two versions, both at 11-1 compression. A single four-barrel 409 came with solid lifters and 380 horses, while your dad's 409 delivered 409 horses, although in 1963 the same engine ...