Big bore help

[quadbod]

I have a standard 06 LTR450 and want more power.

I have been looking at these two kits on flee bay.....

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=360158292118

and

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=250391696386

I guess this is a question to anyone who has had experience with either of these kits to answer.

Or, is there any other bolt on 500cc kits anyone can recomend?

Thanks.

Pete.:blah:

[dpizz450]

what do you have done to it? you have exhaust, open air lid, airfilter, ported head, cam, diff gearing, or any of that? If not i would suggest going that route if you want more power before you do a big bore.

[atveric132]

big bore kits are ****.

[quadbod]

Why are big bore kits ****?

Surely its a cheaper alternative to cams, porting, pipe etc?

[atveric132]

yea there a cheaper way to go but if you build a motor right a big bore kit has nothin for it