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Piston Set Nord 2000 84.0mm 10.5:1 Big Valve LITE WEIGHT APPLE BITE Dish Dome
[JE84PS10.5]
$697.00 $639.00

13 HP GAIN

NEW SQUISH/DISH DOME MAKES MORE POWER

  • Dished dome makes more power. Flame front travel distance is minimized when compressed charge concentrated directly under spark plugs combustion efficiency is improved.
  • Tall shoulders of dome "squash" the mixture at TDC creating a hurricare to distribute the flames.

We have been working with the people at JE on our pistons since 1978. Through our racing engine research and on track experience we have continuously modified our designs for better performance.

  • 10.5:1 compression runs great on 91-93 octane fuel.
  • Compression of 10.5:1 is measured with standard head of 112mm height and 1.4mm Reinze gasket.  WARNING:  25mm milling = +.25:1 increase in compression.  Also, be aware that valve shape/size, seat height and reshaping chambers can make a big difference.  For absolute accuracy, customer should submit head chamber volume.  
  • Deeper valve relief to accomodate most performance cams.
  • Larger diameter valve reliefs will accommodate oversize 46mm intake and 41mm exhaust valves.
  • With lite weight JE optional pins our piston/pin total weights 30% lighter than Borgo type 10.4:1 pistons/pins and about equal to Cosworth

This piston set includes standard wrist pins (109 grams) and conventional Ring Set.

UPGRADE LIST:  (ON LINE ORDERS -- Write in your upgrades in the "Customer Comments Box.")

  •  Upgrade to light weight pins (80 grams) for an additional $80.00.
  • Upgrade to Total Seal gapless second ring set for more HP.  $145.00 extra.
  • Upgrade to Total Seal gapless top ring set for even more HP. $179.00 extra
    (check out HP gains at
    Total Seal HP Gains).
  • Ceramic dome heat coating and Teflon skirt coating REDUCED FROM $188.00 to $125.00 extra.  Dome coating holds heat in combustion chamber for more power. This ceramic shield prevents heat transfer to the underside of the piston and reduces oil temperature. Reduced skirt friction decreases parasetic HP loss.

 

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Spruell Motorsport Alfa is your source for performance parts for Alfa Romeo.
We specialize in Alfa Romeo 101, 105 and 115 drive train products for engine, gearbox, differential and wheels.
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