Big Bore 185s questions

[3wheelrider]

Well- I picked up an old school custom 185s with some goodies-sorry no pics yet (its in pieces now). Anyway- heres the problem (one of them).... I need to know how and from what do I get wide piston rings that are 69.75mm ? The top ring is shattered -prior owner I guess forced the motor over (with stuck rings from sitting)-before selling it to me -errr!.....I cant see finding these wide rings alone so I'll need another piston/rings -right?-but how?
Also its a hi-comp. stroker piston but I'm unsure about the crank/stroke- when I measure the stroke it comes out to stock 58mm?-the rod has s10 427 stamped on the side-is it stock?:wondering......also the deck height is about 2mm - :wondering

Heres a little list of mods done (25+ years ago)..... Its not so pretty anymore:cry:. I'll get pics up eventually:lol::-I have more questions to ask
-late model SL90 front shocks? -(stuck & probably not saveable)
-PK? billet front clamps (gold anodized)
-PCCC turbo wheels (need resto)
-chrome & gold plating! (not so nice no more)
-fiberglass front/rear fenders (front cracked -rear is good)
-airbrushed custom paint on fenders (tank/art is gone)
-oil cooler mod
-big al's cam
-ported head
-???? really nice weld on rear suspension kit:naughty:- ....(I have questions...for another thread)
-PK 200X header?
-69.75mm piston (221cc if I'm correct-not sure on stroke):D
-case bored to 73mm
+ lookin to find a six pack rack:wondering
+ soon to have rear disc brake

[shortline10]

You might can get these to work . contact the seller and have him mic how thick they are .
http://www.ebay.com/itm/Tri-Cor-Triumph-500-Unit-T100-030-Piston-Ring-Set-6-/250971274397?pt=Motorcycles_Parts_Accessories&vxp=mtr&hash=item3a6f0dbc9d

[3wheelrider]

You might can get these to work . contact the seller and have him mic how thick they are .
http://www.ebay.com/itm/Tri-Cor-Triumph-500-Unit-T100-030-Piston-Ring-Set-6-/250971274397?pt=Motorcycles_Parts_Accessories&vxp=mtr&hash=item3a6f0dbc9d
Thanks Mike-I'll try that.....

[3wheelrider]

Well it was worth the try, but no luck.-I told 'em the rings I need are 1.5mm thick and his responce was "thats really thin" - lol!- they dont have anything like that
try Powroll.

They did look thick in the pics tho?-......

[3wheelrider]

http://www.ebay.com/itm/Piston-Rings-69-26-70-25-mm-2-727-2-766-in-/400272224959?pt=LH_DefaultDomain_0&var=&hash=item9c00a833e4
http://www.ebay.com/itm/Oil-Control-Piston-Rings-69-75-72-mm-2-746-2-835-in-/400270133293?pt=LH_DefaultDomain_0&var=&hash=item9c00926559
-I thought I was in luck-but no 69.75x1.5mm closest I could get for the compr. rings is 70mm (I would have to bore & new piston too)
-for the oil ring closest size was 70.2?x 2.5mm (not sure if thats a miprint)....the thickness needed is not available in all sizes so-its gonna be tough to try to buy comp.rings, oil rings, & piston seperately & piece it all together.....I didnt know the thicknesses varied so much.-I'm not liking this.