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Source for replacement pistons for my GS1000S?

  • Thread starter Thread starter terry
  • Start date Start date
Keith used the Wiseco kit years ago and has had no problems.

Not sure what to believe.
 
As with anything in this world, you can have bad luck and good luck.
I too, get frustrated when your best efforts don't pay off. What can you do? Nothing in life is guaranteed.
 
True.
As I said I too have Wiseco pistons in there and doing well, and have used them in the past with no problems.
We each have to decide where to put our money.
 
I was very happy using Wiseco pistons when I was drag racing. I used them for 4 years with no problems.
I didn't use circlips though, I'd heard too many horror stories of them failing, so I used teflon buttons instead.
Also the kits I used were "pro-series" if that makes any difference, I know it did to my pocket, they cost about ?450.00 a set (about $800)! 8O 8O
 
Again contact John at J&E and they will make anything you want. Custom pistons are not that expensive from them. Paul I have tried the teflon and aluminum buttons for the pins on the street. After several thousand miles they will wear a groove in the cylinder. I also used the pro series. The ring lands broke. Arias,MTC and J&E don`t....I used them all. But as I stated under severe loads. Try 35 pounds of boost and 3 stage nitrous so anyone can see that wiseco probably would be fine for the street. But if given a choice I would not use them.
 
I bought a set of Wiseco 1166 pistons last year. 1 was too far out of round to use. They did replace it; though it took 4weeks. Surprised and dissapointed. I heard that Wiseco was concentrating more on dirt bike pistons these days (gotta be a larger market). JE seems to be a popular choice w/drag racers.
 
While we're still on the subject, does anyone know much about "Action Fours" pistons? I bought a NOS set for my old Honda CB750 last year, and they appear to be very well finished.

They're actually a 720CC kit for a Kawasaki KZ650, but at 65mm dia, will take my old sohc 750 out to 836cc, and the domes, although higher than stock, should still squeeze up into the combustion chambers ok. It's interesting (to me at least) that the kit comes with OEM Kawasaki rings and gudgeon (wrist) pins?

Maybe Wiseco should have done a "partnering" deal with the OEM manufacturers and supplied their kits with genuine rings (if possible) and "wrist pins"? :?
 
I used a set in a 750-4 years ago & never had a problem. 836cc - same capacity. A mate also had a set he was also well pleased with them.
Both sets were Action-4's.
 
wiseco circlips have 2 sides. they can be placed in correctly either way, however the sharper edge needs to go towards the piston and the smoother side needs to go towards the pin. if you get this clip in backwards then it pops out and causes problems. the set I have in my chevy pickup can withstand the 7600 RPM runs on the dragstrip.

best suggestion I can say is buy whichever set you feel fit your needs and install them per manufactures specs and don't alter, if it doesn't go as specified then it is a defect in the parts.
 
The action 4`s pistons I have seen are OEM pistons remachined. They`ve been doing that for years. Actually they hold up very well on the street.
 
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