727 Cubic Inch Holden HSV With 1200 HP: A Naturally Aspirated Monster

That’s no typo: Say it with me now, seven-hundred-and-twenty-seven cubic inches of BIG block fury!

Seriously, look at the size of those heads! Are you kidding me?! This Holden HSV has a 727 cubic inch motor under the hood and while it’s not an LSX motor, it’s still beyond impressive. The massive mill is said to make 1200 HP in NA form and we can’t help but wonder if they’ll spray it at some point. We wish the car wasn’t detuned in the video, but apparently it was on the “break-in tune.” We can only hope to see it in action once the motor is worn in.

Seriously, can you imagine a 727 under the hood?

727 cubic inches of fury barely fits in the bay of this Holden HSV.