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71 spider - e production veloce 2.0
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Piston Liner Set 1750 81mm 11.5:1 1750 1mm Overbore Kit 1779-1824cc APPLE BITE DISH DOME
[PL81-11.5]
$1,177.00 $995.00

6 HORSE POWER GAIN!

(SEE PISTON AD FOR PISTON CONFIGURATION DETAILS.)

This 1mm oversize bore kit increases displacement (45cc) from 1779cc to 1824cc. This 2.5% increase in cylinder volume makes about 4 HP. The increase in compression to 11.5:1 adds about another 5 HP, bringing the total gain to an estimated 14 HP. This extra compression makes a huge difference in performance off the corners. 

LINERS 

These liners are rebored from good core 80mm 1750 liners. They are true to .001" for taper and out of round. They are fitted to our 81 mm pistons at .003" to .0035"

  • Our rebored liners are sold on an EXCHANGE basis.  However, you must send your core liners in advance of shipment.  Sorry, but we have to do this because 90% of customers never return cores.
  • NEW LINERS are available.  Add $350.  No exchange necessary.

 

 PISTON SET INCLUDES

  • JE forged piston set
  • Standard wrist pins (106 grams, see upgrades)
  • Conventional ring set (see upgrades) 

UPGRADES:

You should consider the following upgrades:  (Specify upgrades in "Customer Comments" box, when ordering online.)

  • CARRILLO ROD SET of your choice, $50.00 off, if included with THIS order.
  • Upgrade to light weight pins (80 grams) for an additional $80.00.
  • Upgrade to Total Seal gapless second ring set for more HP.  $139.00 extra.
  • Upgrade to Total Seal gapless top ring set for even more HP.  $169.75 extra
    (check out HP gains at Total Seal HP Gains).

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Spruell Motorsport Alfa is your source for performance parts for Alfa Romeo.
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