expansion chambers for RD350 and RD400

[Still biking]

are expansion chambers for RD350 and RD400 interchangeable??  If not, are the hanger connections different? 

[Dvsrd]

Almost interchangeable. C-C of the flange studs is slightly higher om the 400, and the hangers may differ a little bit as well. Easily fixed with a round file or Dremel anyway

[m in sc]

hangers and flanges as mentioned. can be made to work.

[quocle603]

Yep, just some mods and you can make it work.

[Still biking]

thanks for the info! ;D