New member from Australia

[bishboy]

Hi everyone, thinking of doing a 250 or a 500 2 stroke into an alloy frame conversion and came across the forum doing a google search 

Lots of good info and some spectacular bikes on here, I'm mainly into VMX but am looking to do one of our races called the Finke desert race which I believe is similar to your Baja (check it out here http://finkedesertrace.com.au/ )

Quick question:  do either the 250 or 500 engine fit into the 250F or 450F without modifying the Y piece??

Cheers
Andrew

[sandblaster]

Welcome to the forum.
You will need to modify the Y piece for either conversion 
A buddy and I are trying to work out a easier conversion method but it would still require cutting and welding.