Aluminum Chevies Complete Cylinder Heads For GM Chevy BBC Big Block 454 320cc 115cc High Performance

Aluminum Chevies Complete Cylinder Head for GM Chevy BBC Big Block 454 320cc 115cc High PerformaPart Number: FF281.1003 Part Type: Cylinder Head Cylinder Head Style: Assembled Cylinder Head Material: Aluminum Cylinder Head Finish: Natural Combustion Chamber Volume (cc): 115 cc CNC Machined Combustion Chamber: No Inlet Port Volume (cc) : 320 cc Exhaust Runner Volume (cc): N/A CNC Machined Inlet Runner: No CNC Machined Exhaust Runner: None Inlet Shape: Rectangular Inlet Location: Standard Exhaust Shape: D Port Exhaust Port Location: Standard Spark Plug Style: OEM Comparison. Valve Operation: None Inlet Valves Included: Yes Intake Valve Diameter (inches): 2.250 inches Exhaust Valves Included: Yes Exhaust Valve Diameter (inches): 1.880 Including Valve Springs: Yes Maximum Valve Lift (inches): 0.650 Inches Outer Spring Diameter (Inches): 1.550" Damper Spring Included: Yes Number of Springs Per Valve: Included Dual Retainer: Yes Retainer Material: Chrome Steel Included Lock: Yes Lock Style: 10 Degree Stem Seal Included: Yes Stem Seal Style: Forced Stop Included Rocker Stud: Not Included Rocker: Not Included Rocker Nut: Not Included Guide Plate: No Bonnet Mounting Method: Peripheral Bolt Attachment Bolt Hole Drilling: Yes 24 degrees. Exhaust valve angle: 15 degrees. Valve Guide Included: Yes Valve Guide Material: Bronze Seat Machining: Yes Seat Machine Style: 3 Angle Seat Material: Ductile Iron Drilled Steam Hole: No Refueling Method: Via Push Rod