If someone is not happy with the 5th gen Camaro LS3 engine power [426HP], then be thankful to GM that they constructed their Camaro in a way that it is quite easy to swap their stock engine with LS9 from Corvette ZR1. LS9 joins Camaro’s transmission with no extra tune so you don’t have to fit the firewall too.
This is why Hennessey guys could focus on other things… Power. After applying “some” changes Hennessey HPE700 LS9 Camaro, as they call it, strucks 755 HP at 6400 rpm and it takes only 3.3 seconds to hit 0 to 60 [with Nitto Drag Radial tires].
Hennessey is going to built a limited edition of 24 HPE700 LS9 hardtop and convertible units.