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Kiwi · 07-28-2010, 06:27 PM

eagleuh1,

1. Does the GM wiring harness also operate/control the 4L60E transmission? I'm thinking about going with the new 6L80 6-speed automatic transmission and wondering if the harness will properly interact with the transmission.

2. Do the Doug Thorley headers have built-in bungs for the oxygen sensors? If so, are they low down in the collectors and does the GM wiring harness' wiring for the O2 sensors reach (or do you have to lengthen the harness)?

3. Do you have a part number for the Thorley headers for an LS engine in a 67-72 C10?

07-28-2010, 06:27 PM	#15
Kiwi Registered User Join Date: Mar 2010 Location: Los Angeles, California Posts: 81	Re: 1967 Shortstep LQ9 w/Th400 eagleuh1, 1. Does the GM wiring harness also operate/control the 4L60E transmission? I'm thinking about going with the new 6L80 6-speed automatic transmission and wondering if the harness will properly interact with the transmission. 2. Do the Doug Thorley headers have built-in bungs for the oxygen sensors? If so, are they low down in the collectors and does the GM wiring harness' wiring for the O2 sensors reach (or do you have to lengthen the harness)? 3. Do you have a part number for the Thorley headers for an LS engine in a 67-72 C10? Last edited by Kiwi; 07-28-2010 at 08:17 PM.