stroking a 416

[hart]

I heared about stroking a 416 to a 440 wich i would imagine murder a boared 440 if done properaly, i was just curious who makes longer rods for the 400ex and how much do they run for, thanks for the help

[sampleez]

powroll has a kit for about $500, and you get a 87mm piston and you send your crank to them and they stroke it 4mm.

[markk]

Originally posted by sampleez
powroll has a kit for about $500, and you get a 87mm piston and you send your crank to them and they stroke it 4mm.

Exaclty who i was gona recomend!

[Rider#11]

ya its a good crank...you can also go with a 426 piston(88mm) and 4mm stroke witch would be a 450..thats what i did...and its got power..the 416 stroker might rev just a little quicker but the 426 piston revs real quick

[hart]

sounds awsome thanks for the info, mines just a 416 at the moment im just looking to go bigger in the stroke, thanks again!

[khen]

Originally posted by Rider#11
ya its a good crank...you can also go with a 426 piston(88mm) and 4mm stroke witch would be a 450..thats what i did...and its got power..the 416 stroker might rev just a little quicker but the 426 piston revs real quick Curious, does your 450EX run with the piped YFZ's/450R's?

[hoser 400ex]

ive been thinkin about doin a stroker also. with the help of people on this forum i know wat im now gonna do. go with the either the 416 or 426 from wat i here you will be happy with both. personally im goin with a 426 then gonna send crank to tc to get stroked....:macho

[Rider#11]

ya mine will run with them in the right conditions...i have a big problems getting traction...its almost got to much torque..lol..its always breaks the tires loose...im finally getting it tuned in with suspension and tires but ya itl run right with a piped new 450 but they do not have the torque the ex motor has..especially in the honda.. the honda 450 is real smooth and no real power hit in the power band the new 450's have a lil more top end but not as much bottom..my ex has a hard hit to it more like the yamaha..but il go out there and beat alota new yamiha 450's and hondas and others i wont..alot depends on rider..always keep that in mind:cool:

[400sEXridr]

does anyone what kind of piston powroll uses with their bore/stroke combo kit? Also, do they do the cylinder boring as well?

[crandles]

I just installed a 426 kit yesterday. Can I get a stroker crank and rod and use my piston?

[hart]

I belive they use Je Pistons ..