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View Full Version : Big Bore kit


asjr39
12-09-2006, 10:09 PM
Anyone add a big bore kit 40 more cc's to there kfx400? how hard was it and was it worth it? any suggestions on which is better
KFX440ROX
12-10-2006, 01:51 PM
Go with the athena 440 its really nice and reliable, The guy i bought it from he wouldnt sell wiseco's because he has had to many problems with them like freezing up and stuff, so i bought the athena 440 from him it wasnt to bad $550 and it was worth it, i had no problem installing it, all you do is bolt it on and the shop manual is nice to have, heres a link to one it is 80$ more then what i paid for mine though, the guy tould me you couldnt find them cheaper any were else i guess he wasnt lying hope this helps

oh ya and power it is like night and day you will love it
rockman
12-11-2006, 09:19 PM
Originally posted by KFX440ROX
Go with the athena 440 its really nice and reliable, The guy i bought it from he wouldnt sell wiseco's because he has had to many problems with them like freezing up and stuff, so i bought the athena 440 from him it wasnt to bad $550 and it was worth it, i had no problem installing it, all you do is bolt it on and the shop manual is nice to have, heres a link to one it is 80$ more then what i paid for mine though, the guy tould me you couldnt find them cheaper any were else i guess he wasnt lying hope this helps

oh ya and power it is like night and day you will love it
Well i have a wiseco 440 in mine and it is fine. I put it in myself along with the cams. Just to clear things up athena makes a 434, not a 440.
KFX440ROX
12-11-2006, 09:46 PM
ya the 436 and 434 they call it a 440 thats pretty close i mean 6cc if you look at procycle they call it a 440 also

and the wiesco thing im just goin off what he said and what i red 6 other people on zcentral say about theres
rockman
12-11-2006, 10:41 PM
Originally posted by KFX440ROX
ya the 436 and 434 they call it a 440 thats pretty close i mean 6cc if you look at procycle they call it a 440 also

and the wiesco thing im just goin off what he said and what i red 6 other people on zcentral say about theres Thats cool. I was just clarifying for those that didn't know already.