Thorley Header Project Update
#1003
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Yes, but you will need to cut it and use a 3" i.d piece of pipe to slip over the cat inlet and collector. If your going to use a clamp then make sure you leave enough material on the inlet to clamp onto. you can get the piece of pipe from parts store unless you wand stainless steel, which I recommend.
#1004
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So David do you think the clamp would work this type from Magnaflow from the down pipe to the cat
![](http://i129.photobucket.com/albums/p235/melsgtp/Doug%20Throley%20header%20install/Clamp.jpg)
also what size of band clamp
![](http://i129.photobucket.com/albums/p235/melsgtp/Doug%20Throley%20header%20install/Clamp.jpg)
also what size of band clamp
Last edited by Mels SS; 03-28-2010 at 04:54 PM.
#1005
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Smear some of that permatex or similar exhaust sealant around it before clamping to make sure it doesn't leak.
http://www.permatex.com/products/Aut...ipe_Sealer.htm
http://www.permatex.com/products/Aut...ipe_Sealer.htm
#1007
Launching!
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I disagree with that. If u get a bigger cam and some nice heads I think it would work very well. Guys put them on the 5.3 truck engines. I'm sure you might lose some bottom end but would gain a lot of top end. I would rather have a little more top end over bottom.
#1011
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We dont have the gearing for more top end power so we need to focus on low to mid range power. Especially with a 4spd (2spd considering 2nd shifts into 3rd around 98-100mph!)
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#1014
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No. that is at the down tube where the cat would go. I had an exhaust shop weld the flange from behind the cat to a straight pipe with an o2 bung. I clamped it in. Now I hear a hissing noise simmilar to a supercharger whine. I cant find any leaks so I assume that the tube has to be welded.
#1016
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I disagree with that. If u get a bigger cam and some nice heads I think it would work very well. Guys put them on the 5.3 truck engines. I'm sure you might lose some bottom end but would gain a lot of top end. I would rather have a little more top end over bottom.
#1017
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I agree that a fast isn't going to be worth much over an LS6 however, a decent size cam is going to be better than the baby cam. You can make the same bottom end as the baby cam but boost the topend greatly.
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That can't be going through any mufflers. That is LOUD. Sounds great but I know I'd be pulled over at every stop sign around here. I am putting mine through the stock cat-back with no resonator. For now...
-Mike
-Mike
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Well I'm pissed off, Car is supposed to go in tomorrow to get the headers on, my mechanic wants the car next week now, I took tomorrow off for nothing.
I WANT THEM ON SOOOO BAD!!!!!
I WANT THEM ON SOOOO BAD!!!!!
#1020