Raised exhaust ports and header selection

[Mkuhn138]

Anybody on here running heads with raised exhaust ports? Mine are .200" over stock and are Dport shape. I have not been able to find a set of headers where the manufacturer agrees they will work, and a custom set is a little spendy. Anybody had this issue, and what headers did you find that work? Any help is really appreciated.

 

[4X4HIGH]

What heads are you running? I believe my AFR's are .200 raised exhaust ports and i'm just running headers for a 88-95 truck and they work no problem other than being for the wrong vehicle and a slight mod to clear the driver side frame rail for the O2 sensor.

 

[Mkuhn138]

I have gm performance fastburn heads off a circle track crate engine. I'm not retaining any of the emissions controls so the o2 sensor wouldn't be an issue. What kind of headers and what size primaries do you have?

 

[4X4HIGH]

I'm running the Flowtech shorties and they are 1.5" primaries. Oh, my heads are also angle plug and the headers still work without any issues.