Engine Building?

[trx400ex]

hey, its winter time and i think its time to do some engine mods while the shops arent flooded with work and i cant ride. this is what i am planing on doing to my engine now and if you can give me any advice do's or dont's it would be appreciated...

416 10.5:1 piston/bore $130
xr400 cam $110
LRD porting $400
Full pipe $400
FCR 39mm carb $450
Total:$1490



sound good?, do i need to make some changes?, thanks in advance!

[Dave400ex]

I would get a LRD piston kit and a LRD cam since your getting everything else done by LRD.

[trx400ex]

the LRD cam is 175$ plus $300 for new rockers and $140 for valve springs comes out to almost $600 :(


does lrd make a 416 piston kit?