The step header is designed for a raised port head (SR/440-1) when used on a raised block. They will not work with a std ex port head like the EZ/RPM/Stealth etc....on a 440. They will fit a lowdeck with a raised port head, though.

In this case the obvious choice is the 2in TTI's. That's what I have been using on mine with the EZ's and previously the RPM's with an RB block. The e-body & b-body engine bays are basicly the same dimensionally.


Ron