19172377 - COPO LS7 CNC 6-Bolt Cylinder Head Assembly
This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.
Complete GM LS7 Cylinder Head Assembly
- 356-T6 aluminum
- Fully CNC'd ports & chambers
- C5R / LS7 rectangle port design - Requires intake manifold part number 25534394 or 12568976
- Assembled with 2.20" titanium intake and 1.61" sodium filled exhaust valves
- 12 valve angle
- Designed for big bore blocks: LS7, C5R, LSX or Warhawk (Minimum 4.065" bore)
- 270cc CNC'd intake ports
- 85cc CNC'd exhaust ports
- 70cc CNC's combustion chambers
- All fasteners are metric
- capable of over 600 HP
- Bare head # 12575450 is also available
Head contains the following components:
12591644 intake valve
12578455 exhaust valve
12578457 valve spring
10166345 valve lock
12596508 valve spring retainer
12482063 intake stem seals
12482062 exhaust stem seals
12596509 intake lash cap
- Item Requires Shipping
- 30.0 lbs.
- W24.0000” x H7.0000” x L10.0000”
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