Jacobs engine brake

[Cat235D]

Does anyone know if its possible to send the heads to Jacobs and have them fitted with engine brakes??

 

[EMD Diesel Power]

On what engine?

Ford Powerstrokes, Nope
Dodge Cummins, Nope
Chevy Duramax, Nope

Pretty much any Detroit, Cummins, CAT, Navistar above 10L can get Jakes.