heads for my 390 stroker build

Couple of thoughts :

1 - If you go with the RHS, just make sure you use an appropriate piston to avoid excessive compression. Iron heads in any shape or form are less forgiving as far as detonation goes.


2 - The OOTB flow figures publicised for both RHS and Eddy will be "adequate" for a 400 HP build -

- but Brian from IMMs ported RHS heads are a real deal and your 390 will love you for them.

Strokers lurve runner volume etc.

(Of course this all depends on what cam you choose - but I'm assuming it'll be something in the .500 + lift 235 duration area?)