manifolds to headers
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New User
Joined: Jan 2011
Posts: 21
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From: detroit michigan
manifolds to headers
i have a 1990 f150 w/302..im planning on gettin rid of the manifolds because they are cracked n im gonna go with some shorty headers from summit..just wondering what problems i may run into and what to do with the o2 sensor..any advice will help
Freshman User
Joined: Mar 2009
Posts: 39
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From: spring grove pa
O2 sensor is in the downpipe, not the manifold. The worst thing that could happen is you break off a bolt. Drive the truck for awhile, and then take the bolts out while the engine is still hot. I broke one bolt when I did my headers, had to install a helicoil.
The summit shorties fit great and are made by pacesetter. Just get some GOOD exhaust gaskets, and make sure all the bolts are tight.
The summit shorties fit great and are made by pacesetter. Just get some GOOD exhaust gaskets, and make sure all the bolts are tight.
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New User
Joined: Jan 2011
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From: detroit michigan
im not lookin for too much performance but i am wondering if the truck headers from summit are as good or better then the shortys...alot of the things i read on the long tubes is clearence issues...thanx for the input
Senior User
Joined: May 2008
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my long tubes touched the driveshaft (front) and the starter. but it was nothing some heat, a 4' pipe and ratchet strap couldnt take care of. X2 with the good gaskets, go with some dead soft aluminium ones. also start soaking the manifold bolts 3-4 days with some pb plaster before you try to take them off. i still broke 3 when they were 3/4 of the way out. nothing a left handed drill bit couldnt take care of. i also took the wheel wells out, and tires off and went in from the sides. lot easier to drill out the broken bolts, and install the new headers. good luck
Adam
Adam
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New User
Joined: Jan 2011
Posts: 21
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From: detroit michigan
im gonna shoot em with pb blaster and get the engine hott before i try to pull them out but i do have bolt extractors and plan on doin it from the side with the tires off..so once i put the headers on i should put the o2 in the ''y'' pipe as close to the header as possible?
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Logistics Pro
Joined: Mar 2005
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From: Mexico, Missouri
If you wer to get the Summit shorty headers, they should bolt right up to the flange for the "Y" pipe and the O2 sensor should be ok.
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Thread Starter
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New User
Joined: Jan 2011
Posts: 21
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From: detroit michigan
welllll the manifolds that r on there now are cracked real bad and the y pipe is broke rite before the cat..so with the headers im gettin a whole new exaust headers back..it will all b new so i will have to buy sum kind of kit? idk exactly what to do...i dont wanna spend alot of money but i want a lil more performance and better mpg's..
Post Fiend
Joined: Nov 2008
Posts: 23,849
Likes: 20
From: McKenzie River
The Summit shorties are actually Pacesetter headers and are actually real quality products, I have used them on 2 of my SBF Fords with great results.......Fit well, well made,......... just don't break any bolts!
Posting Guru
Joined: Aug 2007
Posts: 1,858
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From: laporte in
bolts break like crazy...be careful..other than that the summits are amazing headers i havent had an issue i painted mine blue with engine enamel and bought new header bolts and the expensive re usable gaskets just in case i wanted to go to longtubes
Senior User
Joined: May 2008
Posts: 241
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pick up a pack of arp 5/16 header bolts (16), little pricey but well worth it. there the only bolts that i could get to work for me. and dont have to worry about over torquing them if your using a little open end/box wrench.
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