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#1 |
Registered User
Join Date: Jun 2011
Location: St Robert, Mo
Posts: 730
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Factory Headers 454 HP Q...
Today I bought a 102K 86 crewcab dually with a 454. It has a factory set of headers on it. I was wondering if the factory headers actually flowed better or produced more HP that a set of factory logs??? The engine code is LE8 and a basic camper special truck from CA.
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#2 |
Registered User
Join Date: Aug 2010
Location: White City, SK
Posts: 411
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Re: Factory Headers 454 HP Q...
Got any pics of the factory headers? I'm not sure what those might be. LE8 is the standard rpo for 454's though the 70's and 80's.
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#3 |
Registered User
Join Date: Jun 2011
Location: St Robert, Mo
Posts: 730
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Re: Factory Headers 454 HP Q...
They are basicly the same as the small block ones, just made for the big block. I will try to get a pic in the morning.
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#4 |
Registered User
Join Date: Aug 2010
Location: White City, SK
Posts: 411
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Re: Factory Headers 454 HP Q...
The big block cast manifolds have a more swept appearance than a lot of the mouse motors did. I'm curious to see what yours look like.
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#5 |
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,211
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Re: Factory Headers 454 HP Q...
Had some on a 86 also had two smog pumps. The did go 300k before they cracked and never warped like the cast iron ones.
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" That didnt make it any newer " " Dont antique the equipment " |
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#6 |
Registered User
Join Date: Jun 2011
Location: St Robert, Mo
Posts: 730
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Re: Factory Headers 454 HP Q...
2 smog pumps on this truck too, I just thought they were there because this is a CA truck. The truck seems to have alot more power than my injected 87 (unknown option code) but this truck is a mostly loaded truck, as my 87 was a work truck plain jane special. The only thing else weird the 86 has is only 2 point seat belt for the outward rear passengers. I've just never seen that before... All the mounting points are there, just lap belts. Anyway here are the pictures of the headers... The first 2 are of the BB ones, the last 2 are my low mileage set of SB ones.
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#7 |
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,211
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Re: Factory Headers 454 HP Q...
Always thought headers was a federal not ca package.
My 86 ran great. Was a roll back tow truck. Went 321k before we sold it. Had a sm465 and a Doug Nash O.d in it. Posted via Mobile Device
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" That didnt make it any newer " " Dont antique the equipment " |
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#8 |
Registered User
Join Date: Aug 2009
Location: S.C.
Posts: 1,593
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Re: Factory Headers 454 HP Q...
I had those on my '86, they're currently sitting on a pallet waiting for a scrap run. (galled threads on smog tube fittings) They're also stainless.
They "may" be better, if i hadn't boogered the threads, I'd use them. Where the smog tube goes in, there is another smog tube extension that goes into the exhaust port of the head. i haven't run the cast logs, so i don't know.
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'86 C-30 dually, 454/tbh400 '73 K-20 350/350/205 (sold ![]() I'm kinda like duct tape- no real purpose, but handy to have around. |
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#9 |
Registered User
Join Date: Jun 2008
Location: Moss Point,Ms.
Posts: 1,439
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Re: Factory Headers 454 HP Q...
These things have any value?
I removed a set from my 454 and still have a set on a 350. I figured they were junk! Mike. ![]() |
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#10 | |
Registered User
Join Date: May 2008
Location: Spokane, Washington
Posts: 596
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Re: Factory Headers 454 HP Q...
Quote:
Let me know. |
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#11 |
Registered User
Join Date: Jun 2008
Location: Moss Point,Ms.
Posts: 1,439
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Re: Factory Headers 454 HP Q...
86454k30,the ones I have available are like the first 2 pictures.They're from a 89/454 motorhome.They only have the stubs for the a.i.r. about 2"/3" long and still open.No cracks or missing studs,but I'll check them again.
I also have the complete serpentine set-up from this same engine.With the power steering pump and 2 smog pumps,etc.And,about 4' of the stainless exhaust with heat shields that was cut off. I would trade for pulley/accessory set for a short pump for my 454 if interested. I'll try to dig them out for pictures in the morning. The ones I have for a 350 are still on my motorhome.(I still need those!) Mike. ![]() ![]() |
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#12 | |
Registered User
Join Date: May 2008
Location: Spokane, Washington
Posts: 596
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Re: Factory Headers 454 HP Q...
Quote:
Would you remove them and ship them? |
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#13 |
Registered User
Join Date: Jul 2009
Location: washington
Posts: 4,178
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Re: Factory Headers 454 HP Q...
I know we're to get some locally at lake Stevens wrecking yard
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377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac 3''spintech prostreet mufflers xpipe 1 3/4 headers build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217 Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511 |
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#14 |
Registered User
Join Date: Aug 2009
Location: S.C.
Posts: 1,593
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Re: Factory Headers 454 HP Q...
Careful this doesn't turn into a FS/WTB thread, there is a place for that.
__________________
'86 C-30 dually, 454/tbh400 '73 K-20 350/350/205 (sold ![]() I'm kinda like duct tape- no real purpose, but handy to have around. |
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#15 |
Registered User
Join Date: Jun 2008
Location: Moss Point,Ms.
Posts: 1,439
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Re: Factory Headers 454 HP Q...
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#16 |
Registered User
Join Date: May 2008
Location: Spokane, Washington
Posts: 596
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Re: Factory Headers 454 HP Q...
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#17 | |
Registered User
Join Date: May 2008
Location: Spokane, Washington
Posts: 596
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Re: Factory Headers 454 HP Q...
Quote:
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#18 |
Registered User
Join Date: Aug 2009
Location: S.C.
Posts: 1,593
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Re: Factory Headers 454 HP Q...
I did the header swap due to cost and effort (maybe a little mileage, if I get it.)
Cheap longtubes were less than 150.00pr shipped, manifolds were 90.00 ea from the local parts house. Plus I didn't have to deal with plugging all the smog holes.
__________________
'86 C-30 dually, 454/tbh400 '73 K-20 350/350/205 (sold ![]() I'm kinda like duct tape- no real purpose, but handy to have around. |
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