2014+ C7 Stingray/Grandsport

The following packages are a basic road map to follow for proven gains that you can enjoy for years to come. If you are wanting a specific setup that differs from these feel free to email us for a specialized quote. Joe@cordesperformanceracing.com

Note on 2014 only C7’s we highly recommend replacing the OEM yellow valve springs, we have personally seen local cars have them break and drop a valve. If you do not plan on going past bolt on’s we swap them out to the blue 2015+ springs

The packages build upon one another, so stage 2 will include everything in 1 as well, and so forth.

Naturally aspirated

Stage 1: Typical gains 15 rwhp over stock

  • AFE cold air intake- If tuning we will do our 4.5” Cold air intake
  • Mighty mouse mild catch can

Stage 2: Typical gains 55-60 rwhp over stock on 91

  • Kooks 1 7/8 longtube headers with high flow catted x pipe (ceramic coating available)
  • CPR 4.5” Cold air intake
  • MSD intake manifold (optional ported 95 mm or 103 mm throttle body available)
  • NGK spark plugs
  • If Z51 car will receive oil change using Amsoil signature series oil and wix filter
  • Dyno tune with baseline pulls done before work begins
  • Optional Flex fuel kit – Allows you to run 91 or up to E85 and tune will auto adjust (usually worth 25 rwhp over 91)

Stage 3: Typical gains 120 rwhp over stock on 91 – Overall gains depend on auto or manual, if auto if keeping oem torque converter this will limit cam size to maintain drivability

  • LTX cam kit, includes cam of choice based on goal, .660 spring kit w/ ti retainers, 3/8 .080 wall chromoly pushrods, amp full vvt lockout or limiter depending on cam
  • DOD delete kit- Using CBI dod plugs, Johnson 2110R lifters, new OEM gm lifter trays
  • ARP head bolts or head studs depending on setup
  • GM gaskets, new cam bolt, crank bolt
  • BTR trunion upgrade
  • LME billet chain guide
  • C5R timing chain
  • Driven fluids & GM coolant w/ distilled water and amsoil coolant booster
  • TCM unlock if 17+ Auto
  • Dyno tune
  • Optional items: LME CNC Ported Cylinder heads, Circle D torque converter upgrade, Flex fuel kit upgrade

Stage 4: Typical gains 220 rwhp over stock on ethanol- This package has many avenues it can go. Please contact us to discuss your goals so we can properly spec this package out.

  • LME based 416 cu or sleeved 427 cu engine
  • LME CNC Ported cylinder heads
  • Circle D converter upgrade if auto car
  • Flex fuel kit (can be omited)

Forced induction

Stage 1: Typical gains 110 rwhp over stock on 91 octane

  • Magnuson 2650 or Procharger kit
  • Mighty mouse catch can
  • LS9 map sensor
  • NGK 6510 spark plugs
  • TCM unlock if 17+
  • Dyno tune with baseline pulls before work begins

Stage 2: Typical gains 140-150 rwhp over stock

  • ARH longtube headers with high flow catted connection pipe (optional high temp ceramic coating available)

Stage 3: Typical gains 220-230 rwhp over stock

  • Alky control meth kit or LT4 high side w/ CPR aux fuel system to run ethanol based fuel and tune auto adjust

Stage 4: Typical gains 270 rwhp over stock on 91 Overall gains depend on auto or manual, if auto if keeping oem torque converter this will limit cam size to maintain drivability

  • LTX cam kit, includes cam of choice based on goal, .660 spring kit w/ ti retainers, 3/8 .080 wall chromoly pushrods, amp full vvt lockout or limiter depending on cam
  • DOD delete kit- Using CBI dod plugs, Johnson 2110R lifters, new OEM gm lifter trays
  • ARP head bolts or head studs depending on setup
  • GM gaskets, new cam bolt, crank bolt
  • BTR trunion upgrade
  • LME billet chain guide
  • C5R timing chain
  • Amsoil fluids & GM coolant w/ distilled water and amsoil coolant booster
  • TCM unlock if 17+ Auto
  • If 2014-2018 will receive aux fuel system
  • Dyno tune
  • Optional items: LME CNC Ported Cylinder heads, Circle D torque converter upgrade, Flex fuel kit upgrade

Stage 5: Gains depend on other supporting modifications- Please contact us to discuss your specific goal

  • LME built shortblock to handle scope of project
  • Additional fuel mods required depending on goal
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