Say what you will about the 2014 Camaro Z/28, but ya gotta admit it’s awesome. Sure, it’s out of reach for most of us, but Chevrolet could have followed Ford’s lead with the Boss 302, or it could have done something else to show the world what a two-ton coupe could do on the track. Now that Chevrolet is done doing the hard work, Hennessey has taken over and made a fine car even finer.
It’s probably familiar to you that a stock Z/28 puts out 505 horsepower from its LS7 7.0L small-block, but that may overshadow the purpose of the Z, which is a street-legal track car a la GT3. What if you’re a Z/28 owner who feels the tune of the LS7 isn’t enough? That’s what happened to one Texas-based owner, who approached Hennessey with his black Z/28. According to the owner, the Z/28 lacked torque on the straightaways, so he requested the HP600 package. This added an easy 130 or so horsepower − 636 in total − and a similar increase in torque. The package consists of:
- Ported cylinder heads
- Upgraded camshaft
- Upgraded valvetrain components
- Upgraded computer metrics
- Long-tube stainless steel headers
- High-flow cats
The result is much more low-end torque that the owner desired, all the while maintaining the integrity of the Z/28 as presented by Chevrolet’s engineers. Take a gander at the below video (including the rousing exhaust note).