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Power Products™ GM LS3 Square Port Heads
These brand new castings are designed and manufactured for performance. The 257cc intake runners will flow to 325 cfm. The matched 101cc exhaust runners will flow over 220.
Part Type: Cylinder Head
Application: Chevrolet/GM LS3
Cylinder Head Material: Aluminum
Bare or Assembled: Bare
Combustion Chamber Size: 70cc
CNC Machined Combustion Chambers: No
Intake Valve Angle: 13.50
Exhaust Valve Angle: 13.50
Intake Port Volume: 280cc
CNC Machined Intake Port: No
Intake Port Flow:
Intake Port Location: Standard
Intake Port Shape: Rectangular
Intake Port Dimensions:
Suggested Intake Gaskets: Fel-Pro 1312-3 or Equivalent
Exhaust Port Volume: 101cc
CNC Machined Exhaust Port: No
Exhaust Port Flow:
Exhaust Port Location: Standard
Exhaust Port Shape: Oval
Exhaust Port Dimensions:
Suggested Exhaust Gaskets:
Spark Plug Style:
Suggested Spark Plug:
Valve Guides: Bronze
Valve Guide Spacing:
Valve Stem Diameter:
Valve Seats:
Valve Job:
Intake Valve Diameter: 2.165"
Intake Valve Included: No
Exhaust Valve Diameter: 1.600"
Exhaust Valve Included: No
Suggested Valve Length:
Valve Spring Pockets:
Valve Springs Included: No
Valve Spring Application:
Valve Springs Retainers Included: No
Valve Locks Included: No
Valve Seals Included: No
Rocker Studs Included: No
Guide Plates Included: No
Valve Cover Mounting Style: Centerbolt
Steam Holes Drilled: No
Heat Crossover: No
Suggested Head Bolts:
Suggested Head Studs:
Suggested Stud Girdle: NA
Head Bolt Torque with Oil:
Rocker Stud Torque with Oil:
Intake Bolt Torque with Oil:
Manufacturer: Power Products™
Manufacturer's Part Number: 54424
Weight:
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Each
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