Advanced Induction Cylinder Head Development
Ai 260cc CNC'd GM 8452 LS7 Cylinder Head Package

GM's #8452 LS7 rectangular port casting easily has the most potential of any GM head utilized on a production car thus far.  Our 260cc Budget CNC option is a great choice for guys who would like to gain some power, but are not inclined to port the casting to its ultimate potential.  This additional gain is attained via fully CNC porting the exhaust runners, and CNC machining the valve seat area of the intake port.  The remainder of the intake port, and the combustion chamber are left as CNC'd by GM.  Combined with our high end CNC valve jobs, precision valve grinding, and milling, the head is bumped into the 650hp+ potential range.

Pricing is for work applied to a pair (2) of cylinder head castings and components YOU supply unless otherwise noted.  We are happy to build your heads with whichever spring kit, valve, etc. you would like.

Machining & Labor Operations:
  • 100% CNC Ported Exhaust Runners
  • 100% CNC Professional Competition Quality Valvejob
  • Factory Valves Cleaned & Precision Ground
  • PCD milled to ensure flatness, surface finish, & achieve desired chamber volume (62 - 73 cc)
  • Intake Flange, Exhaust Flange, and Valve Cover Rail PCD Milled to new surface finish specs
Machining & Labor Cost: $995

Labor and Component Options:

Replace OEM guides with Full Bronze Guides & hone to ideal clearances - Cost: $250
Bronze Guide Liners installed & honed to ideal clearances to refurbish worn out guides. - Cost: $125

Manley Severe Duty Stainless Exhaust Valves - Cost: $230
Manley "XtremeAlloy" High EGT Stainless Exhaust Valves - Cost: $430
Ai Custom DLC coated Ti Intake Valves w/ integral Hard Tip Inserts - Cost: $1345

PSI 1511 MaxLife Endurance Spring Kit w/ OEM Replacement Seals. - Cost: $250
Manley 23622 Titanium Retainers for OEM, PAC, PSI, etc. beehive springs - Cost: $195
Lunati Gold dual valve spring kit w/ lightweight steel retainers.  Lift capacity to .660" - Cost: $225
Manley Nextek .660" Dual Spring Kit w/ Ti Retainers, Hardened Locators, Precision Locks, etc. - Cost: $525
Manley Nextek .700" Dual Spring Kit w/ Ti Retainers, Hardened Locators, Precision Locks, etc. - Cost: $625

Please Contact Us for shipping & turnaround quotes!