header / cat, HELP!!!

[Z-56 Hoe]

ok Guys and or Gals I have had My DynaTech Long Tube Headers for years I used to have a 5.3L, and now I have a 6.0L Block I am using the same headers. I had My engine torn down and re-done and it was running Rich just had in Re-Tuned and My Driverside Hi-Flow Cat has taken a crap on Me. Should I just order the DynaTech LT headers set up for the 6.0 or just do the Intermediate tubes With out the cats For the Setup I have now. the Setup I have now Works Great good Power no Leaks, the Collectors are the same size just the Part #'s are different.
5.3L setup: http://www.dynatechheaders.com/sm_chevytruck_48_53.html

6.0L Setup: http://www.dynatechheaders.com/sm_chevytruck_60.html

 

[Cobra]

So the headers are the same. The difference is the the cats and tubes according to part #. However it shows them to be the same size. Is their more detailed info on what the difference is besides part #?

 

[Z-56 Hoe]

I don't know?

 

[Z-56 Hoe]

They are the Exact same the ones for the 6.0L and the ones for the 5.3L

I called and asked them today. I am going with there intermediate pipes W/O cats tho.

 

[bottomline2000]

They are the Exact same the ones for the 6.0L and the ones for the 5.3L

I called and asked them today. I am going with there intermediate pipes W/O cats tho.

What spark plug wires are you running? I just mocked my headers up to my 6.0 and stock wires seem to be too long on drivers side rear.

These are coated dynatechs. the headers/ y pipes seem to be pretty universal between our trucks/motors.

Sent from my marble slab!