trx vs CRF?

[woodsracer144]

I'm sure the motor mounts are different, question is does anyone know how much different?

can you swap out the heads and stuff? fully built are they close to the same HP or no where near the same? I havnt really got in the honda 450's

[mx Eli]

heads on 06+ trx's and crf heads can be switched, with both built they put out around the same hp but the hybrid revs a hint faster (if i knew why I'd be a millionare)

the stock crf head vs. stock trx head: crf head is almost like having a mild port job, remember thts stock v. stock