quadinfamily
New member
i have 2003 300hp quad that I bought with a 330 kit what i have been told. i'am looking for a new piston and rings. any help would be great
need help
- Thread starter quadinfamily
- Start date
Hello,
I am not aware of a piston for a 330cc kit. I would suggest pulling the cylinder head to get a bore measurement. The stock bore dimension for the gasgas 300cc motor is 72mm.
I have heard that a cr250 piston is very close to an ec250 piston - if you have the cylinder bored and replated you can use cr250 pistons. Given this, if you find out what your bore dimension is, then you can look around for an oversized CR250 piston with this dimension.
jeff
webmaster
I am not aware of a piston for a 330cc kit. I would suggest pulling the cylinder head to get a bore measurement. The stock bore dimension for the gasgas 300cc motor is 72mm.
I have heard that a cr250 piston is very close to an ec250 piston - if you have the cylinder bored and replated you can use cr250 pistons. Given this, if you find out what your bore dimension is, then you can look around for an oversized CR250 piston with this dimension.
jeff
webmaster
A bit off topic, but all the old CR250 pistons I have are very close in dimension, however are flat topped, rather than domed so compression will vary considerably as well. Maybe newer ones are dome tops, but I doubt it.
