DOHC CB750 / 900 Header compitibilty

[Rozabikes Tim]

Looking at various options to buy / fabricate tight fitting 4/1 system for my F2 cafe racer project. Love a yoshi pipe but hens teeth scenario applies (US sourced copy possibly an option)

If I go down the fabrication route, wandering about header pipes as starting point. SOHC 750 options limited but DOHC 750 / 900 more abundant. Pretty sure the answer is no but are these anywhere near compatible / easily tweaked?

Any advice appreciated.

Tim

[Bryanj]

not easily no

[SamCR750]

I bought a Vance & Hines drag pipe that was made for the DOHC series, it does fit the SOHC ports but you have to prise #1 and #4 a little to make them go in, they do seal in to the ports.

Sam.