[were to order 350x big bore parts?] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

Pages:1

were to order 350x big bore parts?
(Click here to view the original thread with full colors/images)

Posted by: JIMFROMTEXCO

well i finally have the swap all running correctly now. but im ready to rebuild my engine. i want to find a 85mm piston for it or just a bigger piston in genral. what company still sells them besides powroll just want to span out all my options.

http://www.3wheeler.org/vb/archive/...hp/t-15209.html i found this information here. but i would like to find out were i can order the pistons mentioned. are they just using xr500 pistons?

Posted by: JIMFROMTEXCO

no body? i think im gonna go with a kit from FST

Posted by: 2muchquad

No,xr500 pistons are a lot taller than the 350x piston,i know because i have 2 of them,i was thinking how i could make mine a big bore,you would have to take almost a 1/4in. off the top of the piston to have 0 deck height.

Look for a 83 or 84 honda xr350 piston and take a bit off the top,use clay to see where the valves will hit.mine used a 83 xr350 84.5mm piston.i think powroll has a 86mm kit as well.

Posted by: JIMFROMTEXCO

i was talking with swingin on 3ww and from what i under stand you can use xr500 pistons and sleves but have to build an 3mm spacer plate because the wrist pin position is 3mm off. i think im gonna go with the 425 kit from fst. or i just might buy the arias piston on ebay. its 3mm over not exactly big bore but it will help. iplan on getting a 250r in the near future.

Posted by: 2muchquad

Yeah i imagine that would work but you'll need to use a longer timing chain,or one that is well used

I almost bought that arias piston on ebay,its 83mm i believe.

Posted by: 2muchquad

if your looking for a aftermarket cam,let me know,i have a web grind 102 brand new in the box,i currently have a web #213 in mine now.

Posted by: JIMFROMTEXCO

how much are you looking to get for the cam? what is it set to do, top end or low end?

Posted by: dork

remember anything over 86mm needs a case bore and larger sleeve.