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Duetto Deck Lid - Fibeglass Repoduction 15# (Click Here foir Ordering Details.)
Duetto Deck Lid - Fibeglass Repoduction 15# (Click Here foir Ordering Details.)
View Latest Additions

NEW SQUISH DISH DESIGN DOME dramatically increases combustion efficiency and power.

NEW ASYMMETRIC FORGING dramatically decreased friction and power loss.  See ad in piston section for details.

CUSTOMER COMMENT:  I am working on my rebuild and admiring the quality of your overhaul kit.  The JE pistons are absolutely beautiful and I'd like to share the specs were spot on.  I couldn't measure any variation between them and they fit the liners perfectly to spec.   The liners were very true with .0003 being the largest variation I could find.  So happy for this.  EE in USA


(Specify in "Customer Comment" Box when ordering online.)

  • 10.5:1 IN STOCK/Runs great on 91-93 octane fuel)
  • 11.0:1 IN STOCK
  • 11.5:1 SPECIAL ORDER
  • 12.0:1 SPECIAL ORDER
  • 12.5:1 SPECIAL ORDER
  • 8.0:1 SPECIAL ORDER.  ADD $25.00.

Valve reliefs are cut with reliefs for large valves and 3mm deeper for most performance cams.


  • JE forged piston set
  • Standaard wrist pins (106 grams, see upgrades)
  • Conventional ring set (see upgrades) 
  • New high strength 84mm liner set (SEE 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.  $169.00 extra
    (check out HP gains at Total Seal HP Gains).

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NotificationsNotify me of updates to Piston Liner Set Twinspark 84.0mm DISH DOME ASYMMETRIC SKIRT. (SEE DETAILS FOR COMMPRESSION.)
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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 and gearbox.
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