2014-19 Corvette Matrix II 640HP Stroker Engine Package

Vendor: Nowicki Autosport





  • 640 BHP / 595 Lbs ft of torque for your Stingray or Grand Sport.  Looking for heads and cam package instead?  Check out our Nowicki Autosport 612 BHP Matrix 1 LT1 head & cam package.
  • True musclecar idle & sound will turn heads & have you grinning at every stoplight
  • Optimizes engine airflow characteristics using 93 octane unleaded pump gasoline
  • Excellent drivability, highway mileage not adversely affected
  • Chassis dyno testing after installation
  • Designed, engineered, & manufactured in USA by former GM design staff employee & Corvette racer Jeff Nowicki
  • Concept7 won 2 prestigious SEMA GM design awards in 2013

  • Engine removal, inspection and cleaning for assembly
  • Diamond custom forged 12:1 pistons w/rings and pins
  • Rod bearings/main bearings
  • ARP head and main studs
  • Comp rocker arm trunion kit
  • Callies Dragon Slayer crankshaft
  • Oliver Racing 6.125 connecting rods
  • CNC ported & polished LT1 cylinder heads
  • Hollow stem 2.13-inch intake valves, 1.59-inch diameter exhaust valves
  • Three angle valve job, hand blending of valve seats
  • CC chambers, surface, set spring heights and assembly
  • PSI dual valve springs, titanium retainers, 10-degree locks
  • Nowicki spec hydraulic roller camshaft by Comp Cams
  • LSA lifters
  • MSD Atomic AirForce intake manifold
  • Comp Cams Chromoly pushrods
  • Attack Blue nano fiber air filter
  • All necessary gaskets & bolts
  • Mobil 1 5w 30
  • Assembly & engine installation
  • Engine control module reprogramming
  • Corsa stainless exhaust with X-pipe
  • Concept7 Carbon fiber under hood package
  • 3 year/36,000 mile limited warranty
  • Installation Note:  Deletes factory active fuel management AFM & variable cam timing system.  Installation time required: 6 weeks and is done a Nowicki Autosport ONLY. Package inclusions are subject to change without notice.  Items on this page are not legal for sale or use on California pollution controlled motor vehicles.  Not compatible with supercharger, turbocharger, or nitrous oxide systems.

Models Years
Stingray Coupe 2014-2019
Stingray Coupe Z51 2014-2019
Stingray Convertible 2014-2019
Stingray Convertible Z51 2014-2019
Grand Sport Coupe 2017-2019
Grand Sport Convertible 2017-2019


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