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PERFORMANCE MOTORCYCLE PARTS AND KITS FOR AMERICAN V-TWINS

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Super Stock® Head Kit for 3 5/8" Bore

 
$982.95
SKU:
90-1004
Qty:
 
Dealer Only Item

 
 
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Assembled Super Stock head kit for 1984–'99 Harley-Davidson® big twin engines feature high flowing ports and a specially shaped combustion chamber and contoured piston dome are what make makes these heads produce power. The increased "squish" area of this design sets up a controlled turbulence in the combustion chamber. That turbulence improves flame travel for a more efficient burn and reduced detonation. Special Super Stock® pistons are required. Pistons are available in 3-1/2" and 3-5/8" bore to achieve various displacements and compression ratios. Pistons must be ordered separately.

 

Features include:

  • Machined with a stock bolt pattern
  • Larger, more open combustion chamber presents less resistance to air flow around the valves
  • 2.000" intake valves and 1.605" exhaust valves
  • Special "cast to shape" intake ports with a special directional fin for improved air flow.
  • Precision CNC machined from heat treated aircraft quality aluminum castings
  • Natural finish
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