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Old 12-25-2010, 03:32 PM   #1
shaved87
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Help with ls1 headers

I have almost completed my 6.0 swap in a 71 c10 now it time to run exhaust and i noticed that my stock maniflolds will not clear and I have no 02 sensors. after buying $120 each o2 sensors now its time to get a set of longtubes… my buddy has a set of corvette longtubes and i would like to know if they would fit since they began to angle in towards the transmission I was wondering if this would be a clearance issue. thanks


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Old 12-25-2010, 07:38 PM   #2
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Re: Help with ls1 headers

No idea on corvette headers, but a lot of people are running Doug Thorley conversion headers, including me. I like them and would recommend them to anyone. Good luck however you go with yours.



I get nothing from this endorsement by the way.
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Old 12-25-2010, 10:05 PM   #3
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Re: Help with ls1 headers

I have a set of the Doug Thorleys on my storage racks and have seen them installed on other trucks. It is a good setup for these trucks and the Gen III motors.
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Old 12-25-2010, 10:22 PM   #4
shaved87
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Re: Help with ls1 headers

What about the ebay ls1 headers? I am trying to find the more cost effective route possible....
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Old 12-25-2010, 11:32 PM   #5
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Re: Help with ls1 headers

I have to agree about the Doug Thorley's. All of my research led me back to them for the price... I paid $460 delivered. Fit perfect. One less headache.





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1972 C10 SWB LS1/T56 6 speed trans/4:56 posi with 5.5"-7" static drop/Boss 338 Wheels 18"x20"

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Old 12-26-2010, 01:30 PM   #6
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Re: Help with ls1 headers

It's hard to beat the Thorleys, great price and an even better fit.

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Old 12-26-2010, 05:49 PM   #7
468BIGBLOCK
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Re: Help with ls1 headers

they look realy NICE!!
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Old 01-03-2011, 08:18 PM   #8
shaved87
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Thumbs down Re: Help with ls1 headers

soooooooo…….with the ebay fbody headers not fit????????
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Old 01-03-2011, 11:32 PM   #9
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Re: Help with ls1 headers

By how much will the stock manifolds not clear? You could do a little triming on the frame and go back and box it up to make even stronger than it was. That what I did on my 7.4l Vortec. I had to trim about 1/2" on both sides of the frame but boxed it up with some 3/16" metal. You can alway add some headers down the road after everything is done...
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Old 01-04-2011, 01:02 AM   #10
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Re: Help with ls1 headers

heres ones on my project Name:  5.3.jpg
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Size:  101.6 KB
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Old 01-04-2011, 01:07 AM   #11
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Re: Help with ls1 headers

Name:  5.3 truck motor.jpg
Views: 1444
Size:  54.1 KB 72 cheyenne super 2001 5.3 4l60e ,doug thorley headers
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Old 01-01-2015, 01:10 PM   #12
cardreams
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Re: Help with ls1 headers

Does anyone have alink to these headers ?
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Old 01-01-2015, 02:07 PM   #13
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Re: Help with ls1 headers

http://www.dougthorleyheaders.com/
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Old 01-01-2015, 06:06 PM   #14
69 GMC Daily Driver
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Re: Help with ls1 headers

I am running Sanderson Headers with my LS conversion.

Part #LS10

Great fit.
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Old 01-02-2015, 09:40 AM   #15
Willie Makeit
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Re: Help with ls1 headers

another vote for Doug Thorley's ...
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