Advanced Induction Cylinder Head Development
Ai System Matched GM LS Cam Kits

     Below are the most common groups of parts requested as a Cam Kit.  The most popular is our "Beehive LS HR Kit," which utilizes the highest quality beehive spring available today.  This spring is a direct swap in part and works phenomenally well with the lightweight OEM retainers & excellent OEM seals.  The "Beehive LS HR Kit" is easily the best option for most HR applications below .630" net valve lift.
     The "Nextek High Lift LS HR Kit" is a premium setup that will handle even the most aggressive high lift cam grinds.  It is an excellent choice for our .630"+ lift grinds, and is often used in applications that utilize heads with heavy after market valves.  Feel free to ask if you would like a part, seal, etc. added to one of the following kits.  Thanks for your consideration!

Please scroll down for camshaft selection info.



Beehive LS Hydraulic Roller Kit:
  • Ai 3-Bolt Billet Steel LSx Camshaft
  • PSI 1511 MaxLife Endurance Springs
  • Appropriate shims included when applicable
  • Ai 4130 One Piece ChromeMoly Hardened Pushrods 5/16" & .080" Wall Thickness
  • Includes Ai in house QC Inspection to ensure your grind will simply install "straight up," no adjustment required

    Cost: $745

    Component Options:

    Add new OEM GM combination valve seals / spring locators - Cost: $50
    Manley 23622 Titanium Retainers for OEM, PAC, PSI, etc. beehive springs - Cost: $195


Nextek High Lift LS Hydraulic Roller Kit:
  • Ai 3-Bolt Billet Steel LSx Camshaft
  • Appropriate shims included when applicable
  • Ai 4130 One Piece ChromeMoly Hardened Pushrods 5/16" & .080" Wall Thickness
  • Includes Ai in house QC Inspection to ensure your grind will simply install "straight up," no adjustment required
  • Manley 221436 Nextek .660" shot peened & fully polished Dual Spring Kit:

      221436-16 Dual Springs
      23623-16 Titanium Retainers
      42334-16 Hardened Spring Locators
      13098-16 Precision Machined Locks
      Steel jacketed Viton seals for dual springs

    Cost: $995

Camshaft Options

  • You may select any cam you would like from our Common HR LSx Grind List
  • You may also request a specific grind from Comp Cams (e.g. a 231° "LSL" Int. & 238° "XER" Exh. on 113° LSA+3° advance)
  • We can come up with an ideal grind for your specific application utilizing both our common & unlisted lobe designs.
    Note: We cannot take the time to spec custom grinds until payment is received for a cam or cam kit.

Click Here to go to our main camshaft info page.