Where can I find a 300R kit?

[VenomRS4]

I cant find a 300R kit anywhere. What can i find one? Also, what am I looking at for prices?

[SYKO]

ebay is your best bet, but its very hard to find the piston and ring kits for them once you do find them, there is a place I have saved that modifies the cylinders for a liquid cooled big bore piston to keep them going. Prices can very I got a head for 15 bucks a few months back, but Ive seen them go well over 3-400 at times and as cheap as 100 for a cyl/head/piston, best bet is to find a running motor with one already on it.

[1upfront]

You can get a new 300R cylinder and head at babbitts OEM parts online for a high price $455.66 for the cylinder, $177.41 for the head, $101.09 for the piston and $31.18 for the rings.
Here's the link if your interested
http://www.babbittsonline.com/pages/parts/home.aspx

[deathman53]

aren't they disconctinued?? I recall reading alot about everything but 1mm over piston and rings discontiued. Also, I read that fl350 pistons are used in them also.

[1upfront]

Yes they are discontinued but Babbitts still has some new ones left at there warehouse also if you want to go with a forged piston kit you can get one off ebay from discountcycleparts for $115.00 that will work with a slight cylinder mod that costs $65.00 heres a picture.
http://i20.ebayimg.com/06/i/000/92/9b/ce0b_1.JPG

[SYKO]

whats the cylinder mod man? you got my interest!

[1upfront]

Well syco I wish I knew what it was but I'll be finding out this fall when I send my cylinder out to have it done, before I do though I'll email the guy and find out exactly what the mod is. Here I cut and pasted what it said about the piston kit.

Your bidding on (1) Of Hondas ATC300 Kit 1981-84 Big Bore Replacement piston kit

* Fits hondaline ATC300 Air Cooled big bore cylinder kits.

* We Stock Replacement Pistons for the Honda ATC300 kit in the following sizes
* 76mm, 76.50mm, 77mm, 77.50mm. Stock bore is 76mm
* Forged Piston for Superior Strength & Resistance to Detonation.
* Cylinder Requires modification to convert from hondas piston to this style piston for the first time.
* Afterwards you can simply bore to the next over size piston
* Send in your Cylinder We do the modification, bore, hone for $65.00 labor 1-2 day turnaround

[1upfront]

Hey Alan I just sent the guy an e-mail about the piston kit I asked him if the kit was wiseco, and I also asked him if he knew what exactly needed to be done to the cylinder to make the kit work. When I hear back from him I'll post up the info he gives me:)

[SYKO]

sweet! that would greatly help out the sir fooler community!

[1upfront]

Well Alan the guy e-mailed me back but he wasn't very helpful with answering my questions all he said was "sure we can do the mods,with bore & hone for 65.00."
I just think he doesn't want to give up his secret for fear of loosing business and he didn't mention what brand the piston was, I'll just have to ask him again Dammit

[1upfront]

It's a Wiseco

[Billy Golightly]

I've heard you can use a Kawasaki jetski piston, from a 650cc or something with similiar mods to using the later atc/trx pistons.