Longtube headers
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From: The blues
Longtube headers
I've been searching for some decent long headers for my 302 for a while now. I haven't been able to find to many that'll fit my 91 F150 4x4 XLT 5 on the floor. I think i've finally found the ones that i want though, Hooker super Comp's. I would like to know if anyones used these yet and if i might need some other mods to compliment them. besides the one's i already plan on getting. which include:
Hooker 2.25" dual side exit exaust with flowmasters series 40 mufflers, no cats.
K&N FIPK cool air intake kit, or maybe a custom in a place with better air flow.
Edelbrock Performer EFI 5.0 truck intake.
Venom 400 PCM.
I would greaty appreciate any advice and input on this set up as well as info on personal expierience with any of these parts/components.
Hooker 2.25" dual side exit exaust with flowmasters series 40 mufflers, no cats.
K&N FIPK cool air intake kit, or maybe a custom in a place with better air flow.
Edelbrock Performer EFI 5.0 truck intake.
Venom 400 PCM.
I would greaty appreciate any advice and input on this set up as well as info on personal expierience with any of these parts/components.
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From: Belle Mead NJ
Those headers are nice, I plan on getting a set to replace the flowtechs on my truck now. I have an issure with the drivers side. Everything you have listed is good. If you have emission inspection make sure you rig up a way to add cats for it, and then remove them when your done.
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From: The blues
At home i know i don't, and since i'm stationed in GA now i was worried, but a super told me there's no inspections down there either. so no worries as far as emissions go.
Done some more researching and i'm gonna have to scratch out the Venom 400, i'm thinkin of 1.7 rockers or an electric fan. which ever one will yeild the most gains. i'll be doing more research tmw though, any good suggestions or info on a new cam compared to the above stated items.
Done some more researching and i'm gonna have to scratch out the Venom 400, i'm thinkin of 1.7 rockers or an electric fan. which ever one will yeild the most gains. i'll be doing more research tmw though, any good suggestions or info on a new cam compared to the above stated items.
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You don't need the Edelbrock intake, the stock one will support 300hp if the motor under it can. These "cold Air Intake" systems are often nothing of the kind, they eliminate the airbox and pull in hot undehood air, which increases noise but decreases power. The stock air box IS an actual cold air intake, it can be improved with a drop-in filter and a 460 intake horn(the part that goes from the airbox to grill). Besides the exhaust the next area that should be addressed is the valvetrain. If you don't want to upgrade the cam, add 1.7 rockers to open the valve more, all the stuff you bolt on outside the motor will produce only minor improvements until you do something to fill the cylinders better.
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From: The blues
Originally Posted by Conanski
If you don't want to upgrade the cam, add 1.7 rockers to open the valve more, all the stuff you bolt on outside the motor will produce only minor improvements until you do something to fill the cylinders better.
I'm in the desert right now so i can't look at my truck and i'll appreciate some spec info. What's the difference between Stud and Pedestal mount. Which one would be best for my application (street/off-road). What extra would i need to go along with them; springs, shims, etc.. Recommended size springs or anything else with varying size.
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From: Ottawa, Ontario
These motors use pedistal mount rockers, they are not adjustable and basically they are a bolt-it-on and forget it type thing. You should not need anything extra to add these rockers, though the valve covers may need minor modifications to the oil filler baffle to clear the #5 rockers. You will feel the difference, the cam regulates airflow through the motor and even subtle changes to total valve lift and duration make a noticable difference.
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From: The blues
good news, i didn't really want to have to add on any extra. or just didn't wanna lighten the wallet to much more anyways
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Stupid question, but is it either go with 1.7RR on a stock cam or replace the stock cam with a better cam (like the ones conanski always lists for SD systems) and do not put the 1.7RR on the new cam? I've been wondering about that for a while now.
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From: Ottawa, Ontario
The stock valve springs can only support lift up to about 1/2" before coil bind, and you'll be safely under that with any of the factory cams, so 1.7 rockers are a cost effective upgrade. Many of the aftermarket cams come with 1/2" plus lift built-in so right away you also need new springs. Many of these motors also use pistons without valve reliefs, so piston-valve clearance can be an issue once you get into higher lift cams with more than stock duration. It's very possible there would not be enough room for 1.7 rockers and a bigger cam, even if the springs are upgraded.
Last edited by Conanski; Jan 14, 2008 at 12:54 PM.
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From: The blues
Since this was orginally titled longtube headers i got a question on them now. On my vehicle wat kind of O2 sensor should i have and how would i route that to a reducer at the end of the headers. if an extension is needed do you know a good place to shop for one(can't find em' on summit). I'll keep looking but maybe you'll have a suggestion before i can find it.
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From: The blues
sry to redirect back to the previous question, but i left out just a few about the rocker arm.
-Slot style(long or ??)
-max spring dia 1.500 vs 1.550(if i plan on a later cam upgrade and head port n polish)
-and i take it the shims included might help with install?
-Slot style(long or ??)
-max spring dia 1.500 vs 1.550(if i plan on a later cam upgrade and head port n polish)
-and i take it the shims included might help with install?
Last edited by jerg_064; Jan 15, 2008 at 07:37 AM. Reason: left out specs
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From: Ottawa, Ontario
Originally Posted by jerg_064
On my vehicle wat kind of O2 sensor should i have and how would i route that to a reducer at the end of the headers.
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From: The blues
Originally Posted by Conanski
The stock air box IS an actual cold air intake, it can be improved with a drop-in filter and a 460 intake horn(the part that goes from the airbox to grill).
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From: Davis & Newcastle, CA
Originally Posted by jerg_064
I still looking for a picture of this intake,i'll take your work that it'll improve the system. is there an online store that might sell this stock part. no summit, or directford, or lmctruck. or should i just try to find one in a junk yard