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 an option 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.  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:

Bronze Guide Liners installed & honed to ideal clearances to refurbish worn out guides. - Cost: $150
Replace OEM guides with Ai Pro Racing Quality Full Bronze Guides & hone to ideal clearances - Cost: $250
Replace OEM guides with new Powdered Metal Guides & hone to ideal clearances - Cost: $250

Manley Severe Duty Stainless Exhaust Valves - Cost: $250
Ferrea Hollow Stem 2042P Stainless Exhaust Valves - Cost: $380
Manley "XtremeAlloy" High EGT Stainless Exhaust Valves - Cost: $430
Manley CrN coated Titanium Intake Valves w/ integral Hard Tips - Cost: $1295
Ai Custom DLC coated Ti Intake Valves w/ integral Hard Tip Inserts - Cost: $1395


PSI 1511 MaxLife Endurance Spring Kit w/ OEM Replacement Seals. - Cost: $280
PSI 1515 .650" Rated LS7 Specific Endurance Spring Kit w/ OEM Seals. - Cost: $330
Manley 23622 Titanium Retainers for OEM, PAC, PSI, etc. beehive style springs - Cost: $195
BTR .660" Polished Dual Spring Kit w/ locators, viton seals, & Steel Retainers - Cost: $230
BTR .660" Polished Dual Spring Kit w/ locators, viton seals, & Titanium Retainers - Cost: $300
Manley Nextek .660" rated shot peened & polished Dual Spring Kit w/ Titanium Retainers - Cost: $500
Manley Nextek .700" rated shot peened & polished Dual Spring Kit w/ Titanium Retainers - Cost: $635
Manley Nextek .800" rated shot peened & polished Dual Spring Kit w/ Titanium Retainers - Cost: $700



Please Contact Us for shipping & turnaround quotes!