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Power Products™ Power Plus CNC Competition Ported GM LS3 Square Port Heads
Fully CNC machined for the perfect street/strip combination. The 70cc CNC’d chambers are designed for 4.000” or larger bores. Precision cast from A356 aluminum. Designed to use most LS3-style intake manifolds and components. Features include 8mm bronze manganese guides, hardened valve seats, large spring seats, and multi-angle valve job.
Part Type: Cylinder Head
Application: Chevrolet/GM LS3
Cylinder Head Material: Aluminum
Bare or Assembled: Bare
Combustion Chamber Size: 70cc
CNC Machined Combustion Chambers: Yes
Intake Valve Angle: 13.50
Exhaust Valve Angle: 13.50
Intake Port Volume: 276cc
CNC Machined Intake Port: Yes
Intake Port Flow: 339cfm
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: Yes
Exhaust Port Flow: 239cfm
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: 54464
Weight:
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Each
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