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HUG 2068

HYPEREUTECTIC PISTON 4.340'X 3.75' STROK

440 QUENCH DOME 9.9:1 W/ 85CC HEAD / KEITH BLACK HYPEREUTECTIC

$375.00

440 Quench Dome 9.9:1 W/ 85cc Head / Keith Black Hypereutectic

For 440 engines
Compression ratio with head CC size.

 

  • 68cc = 11.7:1
  • 73cc = 11.10:1
  • 85cc = 9.90:1
  • 90cc = 9.50:1 
  • 978 grams with pin
  • Effective dome volume: 1.8cc
  • Compression Height: 2.057
  • Deck Clearance:-.025" 

     All compression ratios are based on a .030" oversize and a .039" compressed gasket thickness. Piston deck clearance is based on a block, crank and rods with factory perfect measurements (which, due to poor factory quality control, never happens). All Keith Black pistons have generous valve reliefs to clear most high-lift camshafts. However, always check piston-to-valve clearance prior to final assembly. All Keith Black pistons can be used with either press-fit or full floating wrist pins. All pistons use 5/64", 5/64", 3/16" rings, except for Diamond Racing pistons which use 1/16", 1/16", 3/16" rings, unless ordered otherwise.

     

    For extra strength consider adding our Cryogenic treatment. CLICK HERE

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