Power Products™ GM LS1 Cathedral Port Heads These brand new castings are designed and manufactured for performance. 212cc cathedral port intake runners and 76cc exhaust runners.
Part Type: Cylinder Head Application: Chevrolet/GM LS1 Cylinder Head Material: Aluminum Bare or Assembled: Bare Combustion Chamber Size: 57cc CNC Machined Combustion Chambers: No Intake Valve Angle: 15.0 Exhaust Valve Angle: 15.0 Intake Port Volume: 212cc CNC Machined Intake Port: No Intake Port Flow: Intake Port Location: Standard Intake Port Shape: Cathedral Intake Port Dimensions: Suggested Intake Gaskets: Exhaust Port Volume: 76cc CNC Machined Exhaust Port: No Exhaust Port Flow: Exhaust Port Location: Standard Exhaust Port Shape: Irregular 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: 2.02" Intake Valve Included: No Exhaust Valve Diameter: 1.570" 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: 54420 Weight: Warranty: Race Application, No warranty expressed or implied Quantity: Sold as Each
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