Motor Trend’s sources claim that the new ZR1 will be powered by an evolution of LT1 V8 that powers the new C7 Stringray, but supercharged (as with the outgoing ZR1 to potentially crack the 700hp mark. The outgoing ZR1 produces 638 hp, so we’re looking at quite a jump here. But Chevrolet
will maintain at least a 100 hp gap between the Z06 and ZR1 in order to properly safeguard the latter’s status as king of the hill. At the moment, Chevy is keeping details under lock and key, but MT says it'll be at least a year before the new Z06 arrives, with the ZR1 to follow after that, as the Stingray revels in its limelight in base form for the time being.