The LT- V8 nomenclature is beginning to mature, but the kind of performance it brings is very new. Like, record-setting new.
There’s no question that the new LT1 V8 is better than the good ol’ 350 V8. And the supercharged iteration, the LT4, is even better. So good, in fact, that Advanced Modern Performance (AMP) equipped this LT4-powered C7 Z06 with what it refers to as a “Stage 6X” package of sorts, and the result was a new quarter-mile record for the C7.
This package is an extreme package that AMP added to its shop car. Most customer cars leave with 550 whp, a modest figure compared to the 1,220 whp the shop car has. “There are some things done to this that are more aggressive than we typically do on customers cars, since it would be a pain to live with on the street,” explains Sam Miller, a co-owner and founder of AMP.
So what’re the changes? Aside from the F1X ProCharger, this Z06 has ported heads with heavy duty valves, a custom Comp Cams camshaft ground to AMP specs with an enlarged fuel lobe, dual valve springs, and titanium retainers. Johnson Short Travel lifters, LS2 lifter trays, and ARP head studs were also part of the top-end build.
To help keep things cool, and Alkycontrol dual-nozzle meth kit has been implemented. An external fuel pump was also added to the mix. The exhaust system is comprised of American Racing headers and X-pipe, which sounds straight nasty. The tuning brings all these wonderful components together harmoniously, and was completed by AMP itself, of course.
In order to get more grip, the rear upper and lower control arms were modified and the Weld Alumastar wheels are wrapped in Mickey Thompson drag radials. In order to accommodate the wheels and rubber, the rear brakes were converted with a 15-inch wheel kit.
Aside from the previously listed modifications and lightweight Technocraft seats, everything else on this 8-second racecar is pretty much stock.
After a day of racing at the track, and setting a new record with an 8.983 quarter-mile run at 151.78 mph, the Corvette was used for 400 miles of street use and did it without a hitch. To us, this is the biggest difference between old-school muscle and new-school performance.
Visit LSXMag to see a video of this absolute monster in action.