For Sale 748 Barrels And Pistons

Discussion in 'Parts, Accessories & Clothing For Sale' started by Simon-Ducati, Nov 14, 2015.

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  1. pair of 748 barrels and Pistons in great condition. Removed for 853 big bore. Any questions £45 posted 07903607391

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    #1 Simon-Ducati, Nov 14, 2015
  2. Thanks for that I thought they were standard Pistons
     
    #2 Simon-Ducati, Nov 14, 2015
  3. Ooops these could be high comp Pistons I need to find out before selling them. They could be 853 anyone out there know measurements?
     
    #3 Simon-Ducati, Nov 14, 2015
  4. If they are 748 they will 88mm diameter. Andy
     
    #4 Android853sp, Nov 14, 2015
  5. Thanks Andy will measure them up tomorrow. What do you think to my 998? I know you like em in yellow
     
    #5 Simon-Ducati, Nov 14, 2015
  6. It looks very tidy ............. and makes me want to get my 748R back into road trim. Andy
     
    #6 Android853sp, Nov 14, 2015
    • Agree Agree x 1
  7. I think these are 853 Pistons and barrels I've just measured them and it looks like they are 88mm diameter. Think these have done very little as you can still see honing marks on the barrels. There's some markings on the Pistons which I have taken photos of. Any help to confirm if these are 853 would be very much appreciated.

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    #7 Simon-Ducati, Nov 14, 2015
  8. Measured them 88mm
     
    #8 Simon-Ducati, Nov 14, 2015
  9. I believe that the 748sp, sps and R all had 11.6:1 compression ratio but I only know that the wrist pin diameter for the R is 20mm so that should point you at which engine they came from. A good upgrade for the base 748 if you know how to get the right shim at the base of the barrel to get yor squish right. Andy
     
    #9 Android853sp, Nov 14, 2015
  10. Bugger too slow again but I can do the R valve diameters, 36/30. Andy
     
    #10 Android853sp, Nov 14, 2015
  11. Valve diameter is 33 29 wrist pin is 20mm
     
    #11 Simon-Ducati, Nov 14, 2015
  12. There you go then, 748sp/sps pistons. Andy
     
    #12 Android853sp, Nov 14, 2015
  13. If the piston diameter is 88mm does that mean they are 853cc?
     
    #13 Simon-Ducati, Nov 14, 2015
  14. Even I can work it out that it's 748
     
    #14 deleteduser211220, Nov 14, 2015
  15. Sorry guys I'm not up on this sort of thing. Earlier android mentioned that if the piston diameter was 88mm they would be 853 cc
     
    #15 Simon-Ducati, Nov 14, 2015
  16. In his post (#5) he says 88mm is 748
     
    #16 deleteduser211220, Nov 14, 2015
  17. Doh! Thanks you guys one last question how much are they worth?
     
    #17 Simon-Ducati, Nov 14, 2015
  18. If you check Andy,s earlier post, he said 88mm diameter was for the 748.
    Steve
     
    #18 Birdie, Nov 14, 2015
    • Thanks Thanks x 1
  19. Thanks Steve Ive just realised
     
    #19 Simon-Ducati, Nov 14, 2015
  20. eBay prices are all over the place but there is a pair of sp barrels and pistons for £80 Andy
     
    #20 Android853sp, Nov 14, 2015
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