After completing all the block prep on our SBC 400, it hit the Sunnen SV-15 cylinder hone to increase the bore size to a final 4.155” with the proper surface finish. This will give us 406.76 cubic inches with the stock stroke, which is up 46 cubic inches from our previous Compression Obsession small block. Thoroughly cleaning the block is one of the most important steps of an engine build and for us that means dropping it into our Safety-Kleen Systems hydro-sonic parts washer. This uses high fre

1.4M views · 43K reactions | It's time to wrap up assembly for our Chevy small block 406 engine. To give the right amount of breathing power, we added a new set of heads from Summit Racing Equipment before putting on the finishing touches. All that is left is to decide on the color to paint it. | PowerNation TV | Facebook

Now that assembly for our Chevy 406 small block is complete, it's time to test it out in the dyno cell. We will also use an oil additive by Hot Shot's Secret to cut down on friction and bring more oxidization stabilization to the oil. Now, let's see what kind of numbers Compression Obsession 2.0 can produce! | PowerNation TV