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Old 12-13-2012, 01:08 PM   #1
1970 C10 MJW
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headers, 1970 c10 5.3

i am doing a 5.3 swap and i am going to be looking to buy headers soon, what headers will fit that are reasonably inexpensive?
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Old 12-13-2012, 03:25 PM   #2
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Re: headers, 1970 c10 5.3

These guys had good luck with Trailblazer SS longtubes:
http://67-72chevytrucks.com/vboard/s...d.php?t=554721
http://67-72chevytrucks.com/vboard/s...d.php?t=514041
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Old 12-13-2012, 09:32 PM   #3
joesgreen67
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Re: headers, 1970 c10 5.3

I bought a set of these.....no issues

https://www.racinginnovationandsuppl...26-1&search=GO
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Old 12-14-2012, 08:23 AM   #4
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Re: headers, 1970 c10 5.3

Oh wow, those are cheap...I'll have to pick me up a set...
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1968 Short Bed. 6.0 with LS3 heads, intake, TSP 229/236 cam, TBSS long tubes, and 4L60e with a 3200 stall 4.10 gears.

Future mods: When I get home from this deployment I'll be installing a ZL1 supercharger, TR6060 six speed and upgraded suspension
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Old 12-14-2012, 01:46 PM   #5
68Stepbed
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Re: headers, 1970 c10 5.3

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Originally Posted by joesgreen67 View Post
I bought a set of these.....no issues

https://www.racinginnovationandsuppl...26-1&search=GO
I got those an had them ceramic coated.


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Old 12-14-2012, 03:36 PM   #6
nlped
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Re: headers, 1970 c10 5.3

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Originally Posted by joesgreen67 View Post
I bought a set of these.....no issues

https://www.racinginnovationandsuppl...26-1&search=GO
Are these really Stainless for this price? If so...Smokin' deal
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Old 12-17-2012, 08:49 AM   #7
68Stepbed
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Re: headers, 1970 c10 5.3

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Are these really Stainless for this price? If so...Smokin' deal
Yep, they're really stainless. I questioned it myself at first. The come with port gaskets, but no collectors or collecter gaskets. I just bought some collectors and the aluminum gaskets from a local hot rod shop.
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Old 12-17-2012, 09:02 AM   #8
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Re: headers, 1970 c10 5.3

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Yep, they're really stainless. I questioned it myself at first. The come with port gaskets, but no collectors or collecter gaskets. I just bought some collectors and the aluminum gaskets from a local hot rod shop.
Did you have any fitment issues with these headers?
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1968 Short Bed. 6.0 with LS3 heads, intake, TSP 229/236 cam, TBSS long tubes, and 4L60e with a 3200 stall 4.10 gears.

Future mods: When I get home from this deployment I'll be installing a ZL1 supercharger, TR6060 six speed and upgraded suspension
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Old 12-17-2012, 03:45 PM   #9
68Stepbed
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Re: headers, 1970 c10 5.3

I had to grind a small section of the engine block where there is a big squared off block that sticks out. It's my understanding that the iron blocks don't have this issue. Also, where I'm running a 700R4, the inspection cover mounting "ears" interfered with the collectors. If you're using a 4L60E, this isn't an issue at all.

Also, there's no O2 bung in these, so an exhaust shop will have to weld one in the pipes.
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Old 12-17-2012, 11:20 PM   #10
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Re: headers, 1970 c10 5.3

Thanks. Sounds good to me
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1968 Short Bed. 6.0 with LS3 heads, intake, TSP 229/236 cam, TBSS long tubes, and 4L60e with a 3200 stall 4.10 gears.

Future mods: When I get home from this deployment I'll be installing a ZL1 supercharger, TR6060 six speed and upgraded suspension
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