Lingenfelter Z06 427 CID Twin Turbo
Price: $121,230 and up
Power: 800 hp, 800 lb-ft of torque
Claim to fame: like a Spectre Werkes/Sport GTR, minus the cosmetic flash
Skipping the Hennessey badges may make the ZR750 a light sleeper, but those seeking a true Q-ship may want to cross-shop the parts catalog at Lingenfelter Performance. If you provide enough cash and a donor Corvette Z06, the Indiana-based firm will build you a forced-induction rocket ship.
To cut to the chase, Lingenfelter's specialty involves bolting a pair of Garrett turbochargers onto the Z06's 7.0-liter LS7 V-8. Simple enough, right? Turns out that’s not the case. While Lingenfelter's recipe seems elementary, the company thoroughly rebuilds GM's small-block to handle the pressures created by its twin turbocharger setup. Pistons are replaced with forged aluminum parts, while the stock crankshaft and connecting rods are eschewed in favor of forged steel units. The LS7's cylinder heads are ported and polished, and the upper end is equipped with a new high-performance valvetrain. Revised fuel injectors and a high-capacity fuel rail are designed explicitly for the turbochargers, as are the custom 4-into-1 exhaust manifolds.
The result is nothing short of a monster. According to the company, the finished package produces 800 horsepower and 800 pound-feet of torque -- amazing numbers to be sure. One look at the company's dyno sheets tells an equally interesting story. Measured at the rear wheels, the Z06 427 Twin Turbo package throws down 710 horsepower at roughly 5900 rpm, and 670 pound-feet of torque at 5000 rpm.
Lingenfelter prices the conversion, which takes roughly 12 weeks to perform and carries a 3-year, 36,000-mile warranty, at $45,995. That figure doesn't include the Z06 itself, so expect a completed car to run at least $121,230. That price also doesn't include any cosmetic upgrades, although the tuner has partnered with Spectre Werkes/Sport to drop this very same engine package into the Z06-based GTR model. If Spectre's wild makeover intrigues you, add another $35,000 or so to your budget.
Photos courtesy of Lingenfelter Performance / Barry Kuczyk