mrfreeze
New member
i have a 95 vmax 600 and recently had the cylinders recoated and sent out the replacement pistons with the cylinders so they could size the piston to the cylinder i went with the spi pistons but low and behold it was -39 last night and i melted one of the pistons temp drops too fast here
now since they sized my cylinder to the aftermarket piston will oem fit or should i just stay with aftermarket??????????
now since they sized my cylinder to the aftermarket piston will oem fit or should i just stay with aftermarket??????????
daman
New member
mrfreeze said:
recoated?? reniced?? did they over bore?
mrfreeze
New member
reniced the only thing is they bored to fit standard aftermarket piston but i not sure on the size difference between oem and aftermarket or if i should go with wiesco pistons it the third melt down this season and im not sure whats the best way to go??????
daman
New member
Not sure on the size difference eather,OEM is best but your bore might
be too big now,dunno.
you need to do some measuring..
be too big now,dunno.
you need to do some measuring..
greg
New member
The cylinder bore is likely bigger. Not sure about the SPI piston but being after market, it's likely a forged piston. If it's forged, they run with looser clearences which means the cylinder was sized a couple of thousandths of an inch bigger than for cast (stock) piston.
Only way to be sure is to have your cylinder measured.
Only way to be sure is to have your cylinder measured.
nightmanx1
New member
I would say get the old piston out and see what diamiter the bore is. You never know what you have till you get it all apart. Find somone with a bore gauge and you might find that they did not bore it, if that is the case and the finish is good you can drope a new piston in and your done.