The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-24-2016, 04:18 PM   #1
FB85C10
Registered User
 
Join Date: Jan 2013
Location: NJ
Posts: 58
Headers

Im looking for headers for my 1985 chevy c10 lowered 5.5" in the front with a 1985 350 bored 40 over with 96-up stock vortec heads. I need a set of headers that will fit between the block and frame and also i can not have the header sit below the frame due to the truck being so low and also i have a cpp transmission crossmember i have installed and i wanna avoid hitting that so im going to have the exhaust go up and over that crossmember, could you give me some suggestions and part numbers to go with for my application? Pics too!!


Thanks!!
FB85C10 is offline   Reply With Quote
Old 03-24-2016, 06:12 PM   #2
bbbc10
Diggin The SquareLife
 
Join Date: Dec 2010
Location: garland,tx
Posts: 1,933
Re: Headers

Patriot clippster headers
bbbc10 is offline   Reply With Quote
Old 03-25-2016, 12:45 AM   #3
KQQL IT
At the body shop.
 
KQQL IT's Avatar
 
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,257
Re: Headers

Small block?

These
http://m.summitracing.com/parts/pte-h8021-1


Or these, will need a double hump x member.


http://m.summitracing.com/parts/dou-d310-b
__________________
" That didnt make it any newer "
" Dont antique the equipment "
KQQL IT is offline   Reply With Quote
Old 03-25-2016, 08:39 AM   #4
Pontiac1976
Registered User
 
Pontiac1976's Avatar
 
Join Date: Oct 2015
Location: Ottawa, Ontario, Canada
Posts: 766
Re: Headers

If I recall (SB) 350 most long tube header the driver side is lower( drop lower then other side).
Not sure 1990 up long tube header now days. But you may need to make your own to custom long tube header. Or use shorty headers.
Or buy set headers you like, cut them change to your needs.
__________________
1977 REG cab Long Bed with a 1984 Front Clip, 82 305 .60 over 9.0.1 flat top pistons, 4bbl, TH350, w/84 SS-intake & cam , w/ 1977 big block rad, 1975 gear box, 1984 master w/ metric fittings top & SAE fitting @ portion block, 1975 3.42 gear open diff. Duel 77-87 Factory air cleaner, duel inlet from rad support . Down sized 9' to new 8' Steel flat bed
Was a 77 454 w/308 gear. Taken out 550 lbs. up front with motor clip change.
Pontiac1976 is offline   Reply With Quote
Old 03-25-2016, 09:10 AM   #5
FB85C10
Registered User
 
Join Date: Jan 2013
Location: NJ
Posts: 58
Re: Headers

will a gasket that has the round holes work on my heads cause i have the vortec heads and my ports are square with a radius corner cause im not sure? pic below! or will i need a different header? Thanks!!

[IMG][/IMG]

Last edited by FB85C10; 03-25-2016 at 09:17 AM.
FB85C10 is offline   Reply With Quote
Old 03-25-2016, 11:48 AM   #6
school boy
Registered User
 
school boy's Avatar
 
Join Date: Apr 2012
Location: Loretto Ky
Posts: 318
Re: Headers

OBX 92 Camaro long tube headers. They stay above the frame and clear everything in the engine bay.
__________________
.....__
..........._______ |__\__
..........|__(O)______(O)] ........................
school boy is offline   Reply With Quote
Old 03-25-2016, 12:52 PM   #7
KQQL IT
At the body shop.
 
KQQL IT's Avatar
 
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,257
Re: Headers

The long tubes are a d port, they're on my truck with dart heads.
Square port angle plug. Fit and clearance is great.
Attached Images
 
__________________
" That didnt make it any newer "
" Dont antique the equipment "
KQQL IT is offline   Reply With Quote
Old 03-25-2016, 02:39 PM   #8
FB85C10
Registered User
 
Join Date: Jan 2013
Location: NJ
Posts: 58
Re: Headers

WILL THESE WORK FOR A 1969 CHEVELLE

http://www.summitracing.com/parts/ho...r/applications
FB85C10 is offline   Reply With Quote
Old 03-26-2016, 07:48 PM   #9
TrailerTrash
Registered User
 
TrailerTrash's Avatar
 
Join Date: Jun 2015
Location: PA
Posts: 441
Re: Headers

Quote:
Originally Posted by school boy View Post
OBX 92 Camaro long tube headers. They stay above the frame and clear everything in the engine bay.
like these?
http://www.jegs.com/i/Hedman/500/68460/10002/-1
im looking for a set of headers 77 C10 small block. i have full length ones now but like FB85C10 im looking for something to stay above the frame. mine come down below the frame and at a downward angle. they are old and i have no idea what brand they are or what they are from

i really dont want to spend 300 or 400 bucks on a set
TrailerTrash is offline   Reply With Quote
Old 03-26-2016, 08:21 PM   #10
bbbc10
Diggin The SquareLife
 
Join Date: Dec 2010
Location: garland,tx
Posts: 1,933
Re: Headers

I posted whatbi have on mine lol guess nobody wants shortys lol
bbbc10 is offline   Reply With Quote
Old 03-26-2016, 09:05 PM   #11
TrailerTrash
Registered User
 
TrailerTrash's Avatar
 
Join Date: Jun 2015
Location: PA
Posts: 441
Re: Headers

i know i dont want to pay that price lol

i just want something to help clear the crossmember so i can lower the truck
TrailerTrash is offline   Reply With Quote
Old 03-26-2016, 10:39 PM   #12
school boy
Registered User
 
school boy's Avatar
 
Join Date: Apr 2012
Location: Loretto Ky
Posts: 318
Re: Headers

Quote:
Originally Posted by TrailerTrash View Post
like these?
http://www.jegs.com/i/Hedman/500/68460/10002/-1
im looking for a set of headers 77 C10 small block. i have full length ones now but like FB85C10 im looking for something to stay above the frame. mine come down below the frame and at a downward angle. they are old and i have no idea what brand they are or what they are from

i really dont want to spend 300 or 400 bucks on a set
http://www.ebay.com/itm/OBX-Exhaust-...9TBUh5&vxp=mtr

I'm not sure of other brands, but I'm using these
__________________
.....__
..........._______ |__\__
..........|__(O)______(O)] ........................
school boy is offline   Reply With Quote
Old 03-27-2016, 10:32 AM   #13
TrailerTrash
Registered User
 
TrailerTrash's Avatar
 
Join Date: Jun 2015
Location: PA
Posts: 441
Re: Headers

Quote:
Originally Posted by school boy View Post
http://www.ebay.com/itm/OBX-Exhaust-...9TBUh5&vxp=mtr

I'm not sure of other brands, but I'm using these
ok i got you i didnt realize OBX was the brand you have. have any pics? id love to see where they exit
TrailerTrash is offline   Reply With Quote
Old 03-27-2016, 11:04 AM   #14
TrailerTrash
Registered User
 
TrailerTrash's Avatar
 
Join Date: Jun 2015
Location: PA
Posts: 441
Re: Headers

So i found uncoated Clippsters for $200
http://www.summitracing.com/parts/pt...del/c10-pickup
these might work but i would really like headers that exit level with the frame instead of at a downward angle.

like longtubes that are 4 inches shorter to go above the crossmember
http://www.jegs.com/i/Hedman/500/68460/10002/-1
these might be the ticket

Last edited by TrailerTrash; 03-27-2016 at 11:18 AM.
TrailerTrash is offline   Reply With Quote
Old 03-27-2016, 04:34 PM   #15
school boy
Registered User
 
school boy's Avatar
 
Join Date: Apr 2012
Location: Loretto Ky
Posts: 318
Re: Headers

Old pics but anyway..


__________________
.....__
..........._______ |__\__
..........|__(O)______(O)] ........................
school boy is offline   Reply With Quote
Old 03-28-2016, 09:12 AM   #16
TrailerTrash
Registered User
 
TrailerTrash's Avatar
 
Join Date: Jun 2015
Location: PA
Posts: 441
Re: Headers

those look perfect
TrailerTrash is offline   Reply With Quote
Old 03-28-2016, 09:30 AM   #17
school boy
Registered User
 
school boy's Avatar
 
Join Date: Apr 2012
Location: Loretto Ky
Posts: 318
Re: Headers

Quote:
Originally Posted by TrailerTrash View Post
those look perfect
I forgot to mention they do run very close to my 4l80e pan but worked great with the 700r4.
__________________
.....__
..........._______ |__\__
..........|__(O)______(O)] ........................
school boy is offline   Reply With Quote
Old 03-28-2016, 09:45 AM   #18
MikeB
Senior Member
 
MikeB's Avatar
 
Join Date: Jul 2000
Location: North Texas
Posts: 3,597
Re: Headers

Quote:
Originally Posted by FB85C10 View Post
will a gasket that has the round holes work on my heads cause i have the vortec heads and my ports are square with a radius corner cause im not sure? pic below! or will i need a different header? Thanks!!
As for gaskets, I'm fairly sure FelPro #1444 will work, but I'd be more concerned about matching header port positions to the heads. You should contact a couple header manufacturers to get the exact dimensions of the header ports including height, width, and vertical position relative to bolt holes. This is because Vortec header bolt holes ARE NOT aligned across the vertical center of the port openings, but are slightly lower. Also, the spark plugs are closer to the ports than on conventional heads, which means one or two header tubes per side may be right up against spark plug boots, or maybe even spark plugs!

When I researched this last year, the only person I spoke with who knew about the port height relative to the bolt holes, as well as the spark plug position was Sanderson dealer Century Performance Center in Reno, NV. He gave me a couple P/Ns that would work, but I can't find my notes.

Another note on port height relative to header bolt holes: Exhaust gasses are most active at the top of the port. Just like a car going around a turn, the gasses don't want to change direction when they hit the turn, so they are forced to the outside of the turn -- the top of the port. So, the last thing you want to do is cover up even a tiny part of the port with a head gasket or header flange.

I ended up using 96-2000 cast iron manifolds, and even had to grind them open at the top around .100". But since I plan to add headers someday, please let me know if you find some that fit. I'm learning that Doug's makes a high quality product, so I would probably call them too.

Here you can see that OEM style gaskets cover up the top of a Vortec port.


These are FelPro gaskets for a 96-up 5.7L engine, but I don't have the P/N.
__________________
Mike
1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- sold
1981 C10 Silverado LWB -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

Last edited by MikeB; 03-28-2016 at 10:09 AM.
MikeB is offline   Reply With Quote
Old 03-28-2016, 10:23 AM   #19
MikeB
Senior Member
 
MikeB's Avatar
 
Join Date: Jul 2000
Location: North Texas
Posts: 3,597
Re: Headers

Just noticed my Vortec heads' port shape is different than yours, and the bolt holes are a little lower than yours relative to port height. Are yours 064 castings?
__________________
Mike
1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- sold
1981 C10 Silverado LWB -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!
MikeB is offline   Reply With Quote
Old 03-28-2016, 06:42 PM   #20
MikeB
Senior Member
 
MikeB's Avatar
 
Join Date: Jul 2000
Location: North Texas
Posts: 3,597
Re: Headers

Quote:
Originally Posted by MikeB View Post
Just noticed my Vortec heads' port shape is different than yours, and the bolt holes are a little lower than yours relative to port height. Are yours 064 castings?
I meant 062 castings, but this site won't let me edit my post.
__________________
Mike
1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- sold
1981 C10 Silverado LWB -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!
MikeB is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:31 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com