worth making a hybird?

[87HONDATRX250X]

Hey guys ive got a race ready 400ex. Im wanting more power for racing and by next year for sure ill want a 450. I love my quad and would love to keep it, but i want a little more power. Is it worth making it into a hybird or just buy a 450? Any 450 motors that will line up pretty good with little modding? If there is one. Any thoughts input?

[mx Eli]

look at the last couple threads I had a link up to the 400ex/crf conversion

[chopp124]

i just did a revamp on a 400 with a 426 in it, didnt look to tough to do

[250x_kyle]

the 426 conversions not real hard if you dont get pushed for time

[SHIFTx450]

What makes the YZF motors easier for the conversion than the CRF motors? How about the KTM? Suzuki? Or Kawie motors? Are they all about the same? The honda you would think would be the lower profile pick with the unicam design. Input fellas?

[C41Xracer]

The yamaha motor is a little shorter

[mx Eli]

yea crf's are taller ktm's have the water pump in the way