Need help finding exhaust headers will fit LSI in C10

[trkfrk]

I have not been able to find a company that is making exhaust headers that fit an LS1 into the C10 72 . Please Help.... Thanks

[blazerboy72]

Thorley makes some long tubes or if you are ok with block huggers the hookers are a good fit. I may know where a set of ceramic coated hookers are cheap if you go that route.

[john]

Check out hart_rod truck for header pics.

http://67-72chevytrucks.com/vboard/s...200387&page=18

[mrhino]

I got my 5.3 from a guy who was going to put it in a S10. he had already purchased Sanderson headers for it. when I got it home and tried it in my C10 I was pleasantly surprised that it fit almost perfectly, just had to take a little of the corner of the engine mounts. might be a option for you.

[breezy]

You may not belive me, but get a set of shorty headers from a 5.0 mustang. You have to cut the flange off where they bolt to the head. Purchase some new flanges fron GM for the 5.3. Weld them on and there you go. Hac a buddy put them on a 67 with 5.3. I said he was crazy, but they worked great. Said he found out about it on the net somewhere. Might search for 5.0 headers on 5.3 or something like that.

[eagleuh1]

Doug Thorley Tri Y headers for LS engine in the 67-72 trucks. Great fit, great set of headers. And price is good for the quality you get. You can still get for less than $500 delivered.
Heres mine on 68 C20 with 5.3.






you'll need touse different plug wires and modify oil dipstick or use lokar dipstick.

[eagleuh1]

You can see how I modded the oil dipstick kinda here. The plug wires were ordered at AutoZone.


Headers fit great with no interference using 6 cyl stands in back frame holes. Put the engine back good this way.
Good luck.

[trkfrk]

Originally Posted by eagleuh1

You can see how I modded the oil dipstick kinda here. The plug wires were ordered at AutoZone.


Headers fit great with no interference using 6 cyl stands in back frame holes. Put the engine back good this way.
Good luck.

This is why I love this forum!! Thanks for the the information.

breezy Re: Need help finding exhaust headers will fit LSI in C10

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You may not belive me, but get a set of shorty headers from a 5.0 mustang. You have to cut the flange off where they bolt to the head. Purchase some new flanges fron GM for the 5.3. Weld them on and there you go. Hac a buddy put them on a 67 with 5.3. I said he was crazy, but they worked great. Said he found out about it on the net somewhere. Might search for 5.0 headers on 5.3 or something like that.

I am going to research it. I have the headers that came with the engine off of a Trans Am (do not fit). so I can cut off the flanges-ThankYou!!

[trkfrk]

Originally Posted by john

Check out hart_rod truck for header pics.

http://67-72chevytrucks.com/vboard/s...200387&page=18

John-Thanks for the links - I am still learning how to navigate around the site...

[LEEVON]

I have a set of ceramic coated Hooker LS1 headers and they are off-center towards the rear, would probably fit around the mounts. They were "scratch and dent" direct from Hooker on Ebay for about $200 and I couldn't find anything wrong with them.

[DavidB]

Anybody know the tube and collector size on the doug thorley headers?