piston

[quadinfamily]

i have a 300hp , it came with a 75 mm piston that has 4 cracks in it. I look everywhere with no luck,so this my last change to find one .Does anyone know if a honda piston will work?
thanks alot

[eff]

Where do you live? US?

It is the same piston as the EC 300 so any dealer should be able to supply the proper piston.

[quadinfamily]

stock one is 72mm and the biggest oversize is 73mm, this one 75.5mm i

[GMP]

There is no "oversize" piston for plated cylinders, just micro sizes for fine clearance adjustment.

It must be some odd big bore kit then. Maybe a snowmobile piston? What is shown is a piston for a motor with an exhaust bridge (the drilled lube holes), nothing like a stock GG300.

[jyellard]

Sounds like you should be looking for a new cylinder and piston!

[quadinfamily]

I found the right piston it's from 330 pro x big bore kit for a honda 250r ,and i do have stock cylinder and piston just a little to slow for my taste. 130.00 for piston and rings it cheaper too. thanks for help

[eff]

Glad you found what you need.

[gasgasman]

Hmmmm.......so a person can make his 300 (2 wheeler) a fire breathing 330?!

[Steve@Motowest]

Originally Posted by quadinfamily

i have a 300hp , it came with a 75 mm piston that has 4 cracks in it. I look everywhere with no luck,so this my last change to find one .Does anyone know if a honda piston will work?
thanks alot

You must not be the original owner, do you remember who you bought this quad from?

That may be one of our engines.

[PEB]

Steve,

I have one of those pistons in a stock size that came out of my current bike when I did my first top end. Does that imply I have a bike that you tuned as well? If so, what else did you do to it?

Paul B