Holley Aluminum Cylinder Heads


Holley
Holley Aluminum Cylinder Heads

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Holley Aluminum Cylinder Heads are engineered to increase horsepower & torque across the RPM range. Made from 356-T6 aluminum for weight savings and heat dissipation. Holley heads have optimized intake & exhaust runners increase flow & velocity to improve volumetric efficiency. Heads feature heavy duty dual valve springs designed for flat tappet hydraulic camshafts.
Chevy Small Block

510-300-570
Holley SBC Cylinder Heads
  • 916 Cylinder Head Angled Spark Plug
  • 23 Deg. Valve Angle
  • 2.02 in. Intake Valve
  • Stud Rocker Arm Mounting
    More info on Holley 300-570
    		• $1,296.99
    Ships
    06/06/12

    		510-300-571
    		Holley SBC Cylinder Heads
  • 9/16 Cylinder Head Straight Spark Plug
  • 23 Deg. Valve Angle
  • 2.02 in. Intake Valve
  • 0.563 Deck Thickness
  • Stud Rocker Arm Mounting
    More info on Holley 300-571
    		• $1,289.99
    Ships
    06/06/12