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pigpin
05-17-2007, 04:32 PM
anybody from NC running a 440 kit??? I already have a ton of problems out of the 426 kit, and instead of rebuilding it, i was thinking of goin all the way to the 440 with little lower compression to run it on pump gas. are these set ups good for the trail, i never race it, just ride it. or for the little bit of power advantage i gain should i just go back stock bore and higher compression piston. i just want my 400 turn key reliable and fun, not turn wrench aggervating and broke 70% of the time.

thanks for any and all input

Ruby Soho
05-17-2007, 06:11 PM
13:1 is high. if you lower it to 11:1 or 12.5:1 itll be more reliable. 11:1 on the 440 is good

honda6490
05-17-2007, 07:07 PM
11:1 on mine runs awesome, However like I said in your other post in Powertrain forum, If your current 400 engine/piston/sleeve is running good keep it stock, thats your best bet for reliability.

Zach

Ruby Soho
05-17-2007, 07:15 PM
i would also put in HD head studs. the 440 will rip your stockers out

pigpin
05-17-2007, 08:01 PM
no, its not stock, 426 with 13:1.... where and how much can i find some of these head studs???

thanks

Wheelie
05-17-2007, 09:15 PM
Look into a stroker from www.powroll.com, as reliable as a stocker and fast.

Ruby Soho
05-18-2007, 06:16 AM
you can find the studs at

www.GTthunder.com

pigpin
05-18-2007, 12:08 PM
thanks fellas... so back to my worries of running hot. I mean how much can a couple MM difference literaly make?? anyone having issues with this?

Ruby Soho
05-18-2007, 02:03 PM
my 440 doesnt over heat. Ive ridden in 85F weather for hours and its fine. but i also shut it off for 5 min every once in awile

pigpin
05-18-2007, 02:34 PM
sitting for 5 minutes probly wont cool much, actualy riding the qaud at a decent rate of speed will cool better then sitting still off after being ran a while i would think. but im not talking at wot screaming, just a cruize at a decent rpm to keep air moving over the heat sinks.

j450rking
05-18-2007, 03:01 PM
you could also put on a cbr 1100 oil cooler they are about 2 times the size of the stock one and with just some oil line mods it will hook right up


i can post some pics if you want to see

Wheelie
05-18-2007, 08:53 PM
I've also done the CBR1100 oil cooler mod and it works well. I'm surprised to see that I'm not the only one that has done it.

j450rking--I'm curious, can you post pics--I want to see how you mounted yours up.

j450rking
05-18-2007, 09:49 PM
here you go

j450rking
05-18-2007, 09:52 PM
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j450rking
05-18-2007, 09:55 PM
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j450rking
05-18-2007, 09:57 PM
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