Honda gx620 oversize pistons?

shadowkeeper49

OK guys... I've recently acquired a Honda gx620 that is in need of a rebuild. My problem is finding a source for oversize pistons and rings. I know it will need to be bored as the cylinder walls are pretty rough. I want to make sure I can find the parts before paying my machine shop guy to bore it. Also I've heard that the 390 1.3 ratio rockers and springs will fit the 620 head, just want to verify. Thanks

BGW

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum

Dave in VA

http://www.buggiesgonewild.com/big-b...s-manuals.html

I don't know if this will help or not...











i d

shadowkeeper49

As far as i can tell the gx390 parts will work just wondering if anyone has actually done it... Or if its even worth the $400 in parts...

sho305

I never saw a lot of aftermarket for the honda, but then I never looked hard. There is stuff for Kaw and Kohler and tons of stuff for vannys of course. There is so much stuff for clones because the gx390 honda was raced but never saw honda twin stuff.

Some pistons you can match up you just need the pin size, top height, and bore. You can cut the top down easy enough.

Is is worth it, if you want to build a performance engine its not unless you can find parts. If its worth just a rebuild and rev kit and that is what you want it could be. If you bore it and new bearings, its pretty much a new engine should last a long time and be able to sell it if you want to.