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AU $2,495.00
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Edelbrock Performer RPM 454 Oval Port Cylinder Head Chev BB 396 - 502 # ED60459 Cylinder Head, Performer RPM, Aluminum, Assembled, 110cc Chamber, 290cc Intake Runner, Chevy, Big Block, Each Combustion Chamber Volume (cc): 110 Intake Runner Volume (cc): 290cc Exhaust Runner Volume (cc): 110cc Cylinder Head Style: Assembled Cylinder Head Material: Cast aluminum Intake Port Shape: Oval Intake Valve Diameter (in.): 2.190 in. CNC-Machined Combustion Chamber: No CNC-Machined Intake Runner: No CNC-Machined Exhaust Runner: No Combustion Chamber Style: Semi-open Intake Port Location: Standard Exhaust Port Shape: Square Exhaust Port Location: Standard Intake Valves Included: Yes Exhaust Valves Included: Yes Exhaust Valve Diameter (in.): 1.880 in. Valve Springs Included: Yes Maximum Valve Lift (in.): 0.700 in. Camshaft Style: Hydraulic flat tappet Outside Diameter of Outer Spring (in.): 1.500 in. Damper Spring Included: No Number of Springs Per Valve: Dual Retainers Included: Yes Retainer Material: Steel Locks Included: Yes Lock Style: 7 degree Valve Stem Seals Included: Yes Valve Stem Seal Style: Positive stop Rocker Arm Studs Included: Yes Rocker Arm Nut Thread Size: 7/16 in.-20 Rocker Arms Included: No Rocker Arm Nuts Included: No Guideplates Included: Yes Guideplate Pushrod Size: 3/8 in. Valve Cover Mounting Style: Perimeter bolt Accessory Bolt Holes Drilled: Yes Intake Valve Angle: 26 Valve Guides Included: Yes Valve Guide Material: Manganese bronze Valve Seats Machined: Yes Valve Seat Machine Style: 3-angle Valve Seat Material: Ductile iron Cylinder Head Color: Natural Steam Holes Drilled: No Oiling Style: Through pushrod Machined for O-Ring: No Heat Crossover: No Remanufactured: No Quantity: Sold individually. Notes: For Hydraulic flat tappet camshafts. If using a domed piston check clearance before final assembly, spark plug location has been moved .150 closer to bore center, with a semi-open chamber design. Edelbrock Performer RPM Cylinder Heads Edelbrock Performer RPM aluminum cylinder heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability. They also include hardened seats, bronze valve guides, and fully machined valve cover rails for a more consistent gasket seal. These heads offer improved power throughout the RPM range for greater throttle response and top-end horsepower. Countless options are available; order the model recommended for your vehicle and engine application.