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Chevrolet Performance 12578450

LSX-LS7 CNC-Ported Bare Cylinder Head

Chevrolet Performance 12578450


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Estimated ship date 03/26/18 if Ordered Today
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Chevrolet Performance 12578450 LSX-LS7 CNC-Ported Bare Cylinder Head $1,186.99
LSX-LS7 CNC-Ported Cylinder Head
  • 270cc Intake Port / 85cc Exhaust Port
  • 70cc Combustion Chamber
  • Bare, Sold Individually

  • Chevrolet Performance 12578450 Details

    LSX-LS7 CNC-Ported Bare Cylinder Head

  • 356-T6 aluminum.
  • Fully CNC'd ports & chambers.
  • C5R / LS7 rectangle port design.
  • 12 valve angle.
  • Designed for big bore blocks: LS7, C5R, LSX or Warhawk.
  • 270cc CNC'd intake ports.
  • 85cc CNC'd exhaust ports.
  • 70cc CNC's combustion chambers.
  • All fasteners are metric.
  • Capable of over 600 HP.

  • Specifications:

    Manufacturer's Part Number:

    Extending the performance range of the LSX platform are Chevrolet Performance's new, 6-bolt LSX cylinder heads. Many are capable of flowing more than 400 cfm and their 6-bolts-per-cylinder clamping design gives them bomb-proof strength. Your horsepower-building potential is nearly unlimited with LSX heads. These aluminum masterpieces of performance feature port and chamber designs based on popular and performance-proven production-style heads, such as the LS3/L92 and LS7 heads. They are easily identified by the engraved LSX logo on the ends.

    Features include:
  • All LSX heads are made of 356-T6 aluminum and feature a 5/8'' thick deck that allows plenty of room for builder-specified combinations.
  • Extra material cast in the port areas to accommodate professional porting
  • Uses 11mm (10) and 8mm (13) head bolts
  • 6-bolt per cylinder bolt pattern
  • LS7 style rectangle port design
  • 12 degree valve angle
  • Uses LS7 rocker arms/LS7 bolts
  • Accommodates production valvetrain components (except for Drag Race and Circle Track heads)
  • Includes premium beehive-type valve springs (except for Drag Race and Circle Track heads)
  • Valve guides for 8mm valve stems (except for Drag Race and Circle Track heads)