Any headers that fit perfectly on 84 K10?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

HotRodPC

Administrator
Staff member
Admin
Joined
Aug 29, 2010
Posts
47,128
Reaction score
9,299
Location
OKC, OK
First Name
HotRod
Truck Year
85 K20 LWB
Truck Model
Silverado
Engine Size
454 - Turbo 400 - 3.73
When I was looking, I have wrote down here SUM G9006 from Summit. Read the Reviews and everyone said perfect fit. They are just paint headers so you might want to wrap or repaint with your own high heat paint. Or the Ceramic Coated same headers are SUM G9006-9. But you buy them twice for the ceramic coating.
 

Ewhitaker0020

Full Access Member
Joined
Apr 21, 2019
Posts
272
Reaction score
92
Location
Kentucky
First Name
Eric
Truck Year
1984
Truck Model
K10
Engine Size
305 5.0
When I was looking, I have wrote down here SUM G9006 from Summit. Read the Reviews and everyone said perfect fit. They are just paint headers so you might want to wrap or repaint with your own high heat paint. Or the Ceramic Coated same headers are SUM G9006-9. But you buy them twice for the ceramic coating.

According to the reviews these sound like they'll work perfectly!! Thanks so much for the part number. I'm going to dig a little deeper but it sounds like we have a winner!!
 

HotRodPC

Administrator
Staff member
Admin
Joined
Aug 29, 2010
Posts
47,128
Reaction score
9,299
Location
OKC, OK
First Name
HotRod
Truck Year
85 K20 LWB
Truck Model
Silverado
Engine Size
454 - Turbo 400 - 3.73
According to the reviews these sound like they'll work perfectly!! Thanks so much for the part number. I'm going to dig a little deeper but it sounds like we have a winner!!
Yep, I read the reviews, and not 1 person said they didn't fit or had to make mods to get them to work. The only complaints seemed to be the paint burned off quick. Well Duh, they say painted headers and the paint is just to keep them from rusting before installation. I don't mind headers without paint. Do exhaust manifolds stay painted? NOPE
 

SquareRoot

Full Access Member
Joined
Mar 18, 2017
Posts
4,185
Reaction score
7,996
Location
Arizona
First Name
Mike
Truck Year
85
Truck Model
K20
Engine Size
350
I'm wondering if anybody can help me pick out some headers that will be an exact fit for my 84 K10 with the 305.

I've already upgraded my intake and carb to an Edelbrock combo and it seems like headers are the next easiest bolt on step.

I've heard picking headers for a 4wd can be finicky. I would like to get something cheapish but will bolt right on with little to no modifications. I have AC if that matters.

I'm including a picture of my engine bay, if that helps and a picture of some shorty headers that I bought super cheap at a yard sale.

Do you think this type of header will work? I heard somewhere that headers for a 4wd truck will have one side that's made different to accommodate something or another. Both of the headers I have look exactly the same

Cheap, easy, reliable. You may choose two.


With that said, my Hedmans fit great, except the d/s flange dumped right into the factory auto trans linkage. Easy fix, shitcan the factory linkage and install Lokar floor shifter.
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
30,396
Reaction score
28,178
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
I think I've run most of the commonly available headers for a small block. For the average engine, Flowtech is the simple answer. They just plain fit.

Hooker headers fit well too, but plug wire routing can be a pain on the driver side.

Hedman has a couple different designs and you can get each in several different finishes. One design fits well and is a breeze to install, but they tend to rub the spring shackles. The other design tucks up in nicely, but is harder to install and may interfere with auto trans linkage. Hedman's also use a ball flange style collector (3" too) and is VERY handy at times.
 

Frankenchevy

Proverbs 16:18
Joined
Jan 3, 2018
Posts
6,076
Reaction score
7,743
Location
USA
First Name
Jeremy
Truck Year
Square
Truck Model
CUCV
Engine Size
Small
Or the lokar column shift rod/armature. Works well for me.
 

shiftpro

Full Access Member
Joined
Aug 31, 2012
Posts
4,855
Reaction score
6,092
Location
BC Canada
First Name
shiftpro
Truck Year
73-87
Truck Model
1500, 2500, 3500
Engine Size
350, 383, 454, 496!
I bought these off ebay because the bends looked the closest to the ones i was replacing They say they're for corvettes, but the reviews had a bunch of guys saying they were too long for the vettes, stuck out the bottom. Fit my 79 k20 with a 350. Fit with a th400 and with an sm465 and linkage. I did have to “clearance” some spots and open up the mounting holes in the flange. Have your hammer and pipe ready for dimpling, and drill/dremel/grinder ready to “massage” the flange.

You must be registered for see images attach


You must be registered for see images attach

So from now on we're buying corvette headers...? **** me..
 

semperfiguy98

Full Access Member
Joined
Apr 28, 2016
Posts
57
Reaction score
109
Location
Camas, WA
First Name
Michael
Truck Year
1986
Truck Model
Suburban K20
Engine Size
350
FWIW, I got a set of Flowtech longtubes on my 86 K20 with 350, th400, NP208. I had to modify the AC bracket. The instructions explain how to do that. I also had to switch to a short oil filter. The driver side header was hitting my filter. With the short oil filter I have 3/4 inch clearance between the header and the filter. On the passenger side, the reducer flange is VERY close to the front driveshaft. I did have to move my starter wires a bit, and I plan to put a heat shield between the starter and exhaust tubes.
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
30,396
Reaction score
28,178
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
The AC bracket modification needs done, no matter what brand of headers get installed.

*edit*
When it's a small block and has the R4 compressor and v-belts.
 

Battlac40

Full Access Member
Joined
May 27, 2017
Posts
192
Reaction score
99
Location
New Mexico
First Name
James
Truck Year
1981
Truck Model
K1500 Sierra Classic
Engine Size
350
I have a set of the Edelbrock 50 state-shorty kits for the 305/350. Came ceramic coated with a Y pipe, etc. I sold the "kit" part to a guy with a square van. I do have the small starter-stock. No clearance issues. Had to buy the right flanges to link up to the duel-exhaust P.O. had installed. There is some weird emissions pipes-just capped them. Headers work well and sound/perform amazing. If I could do it over I would add locking header bolts. I have to tighten the arp hex bolts every oil-change.
 

malibuman402

Member
Joined
Aug 2, 2015
Posts
45
Reaction score
40
Location
nc
First Name
Larry
Truck Year
1984
Truck Model
C10 Silverado
Engine Size
BB 402+.060 = 413.8CI
patriot mid length headers are the ticket. your exhaust can be tucked even with the frame rails. just my thoughts.
 

Ewhitaker0020

Full Access Member
Joined
Apr 21, 2019
Posts
272
Reaction score
92
Location
Kentucky
First Name
Eric
Truck Year
1984
Truck Model
K10
Engine Size
305 5.0
When I was looking, I have wrote down here SUM G9006 from Summit. Read the Reviews and everyone said perfect fit. They are just paint headers so you might want to wrap or repaint with your own high heat paint. Or the Ceramic Coated same headers are SUM G9006-9. But you buy them twice for the ceramic coating.


I found a guy near me selling a pair that look exactly like the ones you linked for $50. Score.

You must be registered for see images attach
 

FireTruck1984

Full Access Member
Joined
Jan 7, 2019
Posts
2,983
Reaction score
9,902
Location
Michigan
First Name
Ted
Truck Year
1984 and 1984
Truck Model
High Sierra K1500 350. Sierra Classic C1500 305.
Engine Size
350, 305
Hooker Competition fit great, this is an ‘84 K10
You must be registered for see images attach
You must be registered for see images attach
 

Latest posts

Forum statistics

Threads
44,068
Posts
948,719
Members
36,134
Latest member
saintjunior33
Top