• Mustang Forums
  • 1974 - 1978 Mustang II Talk & Tech

1976 Cobra build

  • Thread starter Thread starter 76_Cobraii_mustang
  • Start date Start date Feb 16, 2020
Prev
  • 1
  • 2
  • 3
  • 4
  • 5
Next
First Prev 4 of 5 Next Last
7

76_Cobraii_mustang

5 Year Member
Jul 23, 2018
101
85
53
01068
Nov 9, 2022
#61
  • Nov 9, 2022
  • #61
IICrew said:
They are in Christine. It was a v6 /auto and now has a 302 /T5. I have all 3 major brands on different cars or at different times. The hookers blow the others away. The hookers are the best fitting headers of the bunch. I have 2 brand new sets of hedmans sitting here now and am saving up for hookers for the Mach I. The hedmans are just not worth it after using the hookers. They dropped right in. No trimming of the strut rod. No hammering at the steering shaft. They just fit.
Click to expand...
Well that sounds pretty reassuring! Do you have any pics that I could look at?
Thanks
 

extra_stout

5 Year Member
Aug 27, 2018
818
930
113
Germany
Nov 10, 2022
#62
  • Nov 10, 2022
  • #62
76_Cobraii_mustang said:
My dad saw your thread and we both liked the work you did and planned on copying it. My main concern was the manifolds being restrictive. My engine is a 302 .30 over. It has a mild cam. I have an edelbrock 289 series intake and a 600 cfm edelbrock carb. I have AFR 165cc Aluminum heads. My concern was the manifold suffocating the heads. I was also wondering if a stock header replacement for a 65 would work in the place of the manifolds.
Click to expand...
Yeah, with that engine the manifolds will be restrictive for sure. 65 mustang headers don't fit, 65 mustang HiPo manifold will also not fit. Fox shortys don't fit. As I said the only product that could(!) fit are the JBA mid-length. But I think with the experience @IICrew has with the hookers, and because they are in the same $$$ range as the JBAs I would not start messing with a custom setup. I had the manifolds already laying around and with my engine that is setup for low end torque, I didn't want to spend money on that... at least at that time.
 
I

IICrew

Mustang Master
Mar 29, 2020
479
608
103
USA
Nov 10, 2022
#63
  • Nov 10, 2022
  • #63
I do not have engine bay pics of the hookers yet. The pics in my build thread are the old blackjacks. They fit pretty good but I had to use a bfh to get clearance at the steering shaft. Fitment wise the two sets are very similar except at the steering shaft. The hookers went in without any adjustments. They hug the block closer vs the blackjacks. I do not know what gauge they are both made of but my set of blackjacks are noticeably lighter. Where the pipe is welded to the flange at the head is thinner on the blackjacks. Not much sealing surface. That mounting flange is also thinner. I had a hard time keeping them sealed there. I used regular, double layer steel, then double layer copper gaskets. I always had the header tick. It was better with the copper but still there. I have a ground down 3/8 wrench I carried with me all the time to snug them up.

The hookers sealed fine using the copper double layer gaskets. The only problem I had using them and the double layered gaskets was needing longer header bolts. I have put about 2,000 miles on the hookers and have not needed to re-tighten the header bolts. I had to do it repeatedly on the blackjacks.

The hedmans I have were new. One set still in the box. They came with project II's I picked up along the way. One set is on the Mach I now. The last posts in that build thread covers the problems they presented. I know others have used them with success. Both of my sets are bent wrong out of the box. The are parallel at the flange and collector but should have a mild kick down. As is they are too close to the floor and crossmember. Once the collector flange is on there is not enough room for a pipe to clear the crossmember. That car is a stock 302/4 speed. I could try to bend them downward but then I still have the one pipe going under the front crossmember. It would probably be okay on the Mach I as it sits higher but I would certainly smash it on Christine as she sits lower.
 
Reactions: Enzio and extra_stout

extra_stout

5 Year Member
Aug 27, 2018
818
930
113
Germany
Nov 10, 2022
#64
  • Nov 10, 2022
  • #64
Reading about the sealing issues @IICrew has... you do not have them with manifolds. I could not believe, that they are mounted without gasket. A friend said just use a little bit high temp silicone. It works really well. Because I bought a new set of this 65 specific locking-sheet-metal-things, I have no issue with loose bolts or leaks compared to my experience with headers on my 65 coupe:
 

2Blue2

will be trying this sex one when I can find it
Mod Dude
Mar 5, 2019
4,430
2,893
163
Oahu
Nov 10, 2022
#65
  • Nov 10, 2022
  • #65
IICrew said:
I have all 3 major brands on different cars or at different times. The hookers blow the others away. The hookers are the best fitting headers of the bunch
Click to expand...
When the time comes, this is what I’ll do.
Thank you.
 
Reactions: Enzio
7

76_Cobraii_mustang

5 Year Member
Jul 23, 2018
101
85
53
01068
Nov 11, 2022
#66
  • Nov 11, 2022
  • #66
Cowl is apart. Patch is made. Will be welding patch in tomorrow. This was me and my dad working on it today.
 

Attachments

  • E8F5EC29-D828-463D-B1A9-F3A4E2AF6CC4.webp
    487.7 KB · Views: 201
  • AEA5FD53-94D6-4C1E-8CEB-1CA6D6B8EC4F.webp
    400.9 KB · Views: 233
  • 105F885B-083D-4796-B497-22F792348CA3.webp
    563.5 KB · Views: 204
  • FBD2D35E-9797-499F-85C5-7E34175DE9A4.webp
    484.6 KB · Views: 219
  • D2FB0F30-E2A1-448C-9DC1-F0F4A7DE68F0.webp
    468.3 KB · Views: 234
Reactions: LILCBRA, IICrew, Enzio and 1 other person

2Blue2

will be trying this sex one when I can find it
Mod Dude
Mar 5, 2019
4,430
2,893
163
Oahu
Nov 11, 2022
#67
  • Nov 11, 2022
  • #67
Wow look at that cowl getting peeled open!
Getting after it for sure!

Were you able to save the windshield?
Is the spot welded flange intack or does it need patching too?
Will you be able to seal up the back side?
Doesn’t attach to A .pillers right?
Can we have more pictures? including back sides of both upper and lower cowl?

Dads the Man! helping out on this! Old Guys Rule!

I’m gonna get to do this. but hard to do with engine in I bet.


Step Right Up.
Guess the number of drilled spot welds and win a prize;

I Guess 108.
 
Reactions: IICrew

extra_stout

5 Year Member
Aug 27, 2018
818
930
113
Germany
Nov 12, 2022
#68
  • Nov 12, 2022
  • #68
2Blue2 said:
Guess the number of drilled spot welds and win a prize;
Click to expand...
189.5

Looks like you both have fun! Thats the best on your project.
 
Reactions: 2Blue2
7

76_Cobraii_mustang

5 Year Member
Jul 23, 2018
101
85
53
01068
Nov 12, 2022
#69
  • Nov 12, 2022
  • #69
Taping off all the glass. The windshield I didn’t bother saving as it had a big crack up the middle already. I will have to count the spot welds and get more pics of the cowl.
 

Attachments

  • BA5837EE-5D5C-4CB3-900A-909EB6662373.webp
    459.6 KB · Views: 202
  • 6C8DACC6-8699-4A43-A3D4-B1325657F209.webp
    426.6 KB · Views: 167
  • FA4849E2-C893-4890-BE36-D0CEA42E7395.webp
    335 KB · Views: 178
  • 97CC62AA-2EF7-42C4-A8F2-7AC0279631C4.webp
    221.8 KB · Views: 217
Reactions: LILCBRA, IICrew, extra_stout and 1 other person
7

76_Cobraii_mustang

5 Year Member
Jul 23, 2018
101
85
53
01068
Nov 12, 2022
#70
  • Nov 12, 2022
  • #70
2Blue2 said:
Wow look at that cowl getting peeled open!
Getting after it for sure!

Were you able to save the windshield?
Is the spot welded flange intack or does it need patching too?
Will you be able to seal up the back side?
Doesn’t attach to A .pillers right?
Can we have more pictures? including back sides of both upper and lower cowl?

Dads the Man! helping out on this! Old Guys Rule!

I’m gonna get to do this. but hard to do with engine in I bet.


Step Right Up.
Guess the number of drilled spot welds and win a prize;

I Guess 108.
Click to expand...
The windsheild had a big crack already so I didn’t save it. The flanges were really clean so I won’t have to repair them. It attaches to the a pillars more towards the bottom. Ill be able to seal the bottom but not the bottom of the top piece once its welded on.
Ill get more pics
With engine with be really difficult I think. If you have an interior in your car it would be even tougher.
 
Reactions: 2Blue2
7

76_Cobraii_mustang

5 Year Member
Jul 23, 2018
101
85
53
01068
Nov 13, 2022
#71
  • Nov 13, 2022
  • #71
My dad gpt the patch all welded in. Tomorrow we have a few more patches to do. Then I go back to school. Will have to wait until next weekend to paint it.
 

Attachments

  • 5BFE44D1-21D7-41BE-A9DA-9C9C529075FD.webp
    441.1 KB · Views: 167
  • 54CA8E2B-BEB7-4D09-8D0A-23BC7AD3A370.webp
    506.5 KB · Views: 177
  • FA1C4C94-13B5-4D80-AF10-31330986623F.webp
    357.8 KB · Views: 187
  • 2C99582A-B0C8-422F-B212-38B86AE52D89.webp
    550.4 KB · Views: 171
  • 30D0EDBD-647E-49AF-914A-DED106C2E066.webp
    295.6 KB · Views: 209
  • 5027D705-F0FC-45B2-9DB5-8D1637F2D3C0.webp
    418.8 KB · Views: 205
  • 2C4F6DF3-C1FF-488E-B807-A62988747E90.webp
    470.2 KB · Views: 190
  • 16C1415B-EDF6-4E9D-B23A-2A2AE870F675.webp
    540.2 KB · Views: 196
  • D253DB99-CE73-41DC-A731-3DFD8EA023F9.webp
    501.1 KB · Views: 146
Reactions: LILCBRA, IICrew and Enzio

Enzio

Dang it. I was hoping mine would get 3 more inches
5 Year Member
May 14, 2019
1,054
840
133
Minnesota
Nov 13, 2022
#72
  • Nov 13, 2022
  • #72
Wow that's going deep! Thankyou for the pictures. Please keep us updated with the progress.
Not a welder but I count 74
 
Reactions: 2Blue2
7

76_Cobraii_mustang

5 Year Member
Jul 23, 2018
101
85
53
01068
Nov 13, 2022
#73
  • Nov 13, 2022
  • #73
My dad got the rest of the patches in today. He did an amazing job. Not many people would bother with a Mustang II. He convinced me to fix it.
 

Attachments

  • D80B5B74-D453-4785-BE99-177ECF2A3DE8.webp
    503.4 KB · Views: 172
  • C2CC2E52-01B2-4E82-9BBF-FD014A089788.webp
    410.5 KB · Views: 183
  • 8DA5020F-460C-475C-9262-1DE24D07EBEA.webp
    460.6 KB · Views: 165
  • FAAC09BB-6CB1-4E96-A56C-007AC7A19FA1.webp
    524 KB · Views: 203
  • BB9DBDC2-EAE2-409E-BAE0-5495EDDD9F03.webp
    564.9 KB · Views: 168
  • 82D2B068-E06B-44E4-9693-253808B24EE3.webp
    423.5 KB · Views: 180
  • C5A2009D-CFE5-4001-B38B-31485269486B.webp
    515.6 KB · Views: 198
  • 55C12CB2-4813-4F48-89FF-F1538E3D01BA.webp
    458.9 KB · Views: 182
  • 2C09D59D-90EF-4819-951E-911B8E692F41.webp
    498.8 KB · Views: 180
  • CEC8DD16-9EDD-47C0-9149-88062D17E2E5.webp
    492.4 KB · Views: 198
Reactions: Enzio and LILCBRA

extra_stout

5 Year Member
Aug 27, 2018
818
930
113
Germany
Nov 14, 2022
#74
  • Nov 14, 2022
  • #74
Nice work! Because you closed the openings for heater/air, are you thinking about closing the "grille" in the cowl vent, too?
 
Reactions: Enzio and LILCBRA

Potomus Pete

I'm still waiting for the fully nude shots
5 Year Member
Mar 7, 2019
3,308
1,223
153
Sarasota Florida
Nov 14, 2022
#75
  • Nov 14, 2022
  • #75
Mustang II will be worth it because there is hardly any around. Plus they look so cool.
 
Reactions: Enzio and LILCBRA
7

76_Cobraii_mustang

5 Year Member
Jul 23, 2018
101
85
53
01068
Nov 14, 2022
#76
  • Nov 14, 2022
  • #76
extra_stout said:
Nice work! Because you closed the openings for heater/air, are you thinking about closing the "grille" in the cowl vent, too?
Click to expand...
No I was thinking of using a modern box. My dad has a 67 cougar and we used a box from old auto air. With those boxes they close up the vents. I was going to use the factory stuff and even bought a factory A/C system which was a fortune but I decided I would want to stick with the new box as it is more efficient and about 1/3 of the size. The holes at that point were just where water would collect so I closed them. I will be keeping the grille though! I don't really think they ever look right without them.
 
Reactions: 2Blue2, LILCBRA, extra_stout and 1 other person

extra_stout

5 Year Member
Aug 27, 2018
818
930
113
Germany
Nov 14, 2022
#77
  • Nov 14, 2022
  • #77
I like that you modify the car! And I'm very interested how the old auto air system will look like in your car. Had today a quick look how their system looks.
 
Reactions: LILCBRA

2Blue2

will be trying this sex one when I can find it
Mod Dude
Mar 5, 2019
4,430
2,893
163
Oahu
Nov 19, 2022
#78
  • Nov 19, 2022
  • #78
Heck yeah!
Your The meat and potatoes of the Teck & Talk M II forum this week!
Looking good!
Carry On!!
 
7

76_Cobraii_mustang

5 Year Member
Jul 23, 2018
101
85
53
01068
Nov 19, 2022
#79
  • Nov 19, 2022
  • #79
All painted. Tomorrow I will seam seal it and then put a final coat.
Also my dad worked on repairing the top plate.
 

Attachments

  • 7FD75494-BF46-482D-A473-F128BBB7C5BE.webp
    478.9 KB · Views: 162
  • 975223CC-FA26-47DC-8376-CBF031E2F73F.webp
    460.8 KB · Views: 157
  • 807F56A6-DAD8-432A-B233-D45DF379A597.webp
    418.1 KB · Views: 168
  • 5FC99C66-AF81-4108-B531-895EAD276AE9.webp
    467.8 KB · Views: 154
  • 26C97B40-6822-4DAB-8C73-7B1FA026DBF5.webp
    384.3 KB · Views: 182
  • 10ACB485-0159-4B3B-A0E8-122B278DF5E4.webp
    328 KB · Views: 167
  • 58A6BB64-6E4D-4CDA-9858-29871F8EE7A1.webp
    595 KB · Views: 171
  • 38C3EDBB-1B47-4405-84C5-31E4C7AE58C9.webp
    378.9 KB · Views: 166
  • 64789C87-2042-41CD-825E-C2082A92B635.webp
    399 KB · Views: 183
  • 04AEA7DE-EBCC-43CD-B424-859E1519F331.webp
    325.4 KB · Views: 151
Reactions: 2Blue2, LILCBRA and Enzio
7

76_Cobraii_mustang

5 Year Member
Jul 23, 2018
101
85
53
01068
Nov 20, 2022
#80
  • Nov 20, 2022
  • #80
Today I did the seam sealer. Then I did another two coats of epoxy primer on top of the sealer. My dad finished the repairs on the top plate. I painted that in epoxy as well.
 

Attachments

  • 096B6505-B867-403B-8714-65BFA3FC9745.webp
    540.9 KB · Views: 140
  • 2A9738CF-7513-4971-870D-65A26A40EB34.webp
    336.7 KB · Views: 163
  • 5A5CF1D8-909A-48BA-9215-62A53CB79A27.webp
    564.1 KB · Views: 163
  • 55695D24-F7E6-4435-97F2-B433BC2B9388.webp
    315.2 KB · Views: 170
  • 98D9EBFC-88FA-4E4A-9805-26273FCA5C06.webp
    339.6 KB · Views: 147
  • 82EB8FE9-BFA7-4744-9350-BA42FBEEA49A.webp
    382.5 KB · Views: 159
  • 3FA51D91-AEEB-47C4-B321-B5A74D090692.webp
    352.6 KB · Views: 152
  • F86EF692-2883-4524-8457-F00AC9AF8862.webp
    344.3 KB · Views: 196
  • FB73B7BE-69BE-4BC0-9489-1065E726E80F.webp
    354 KB · Views: 159
  • AD55CB78-691D-445C-A0E0-588A6A0AAA76.webp
    386 KB · Views: 185
Reactions: 2Blue2 and LILCBRA
Prev
  • 1
  • 2
  • 3
  • 4
  • 5
Next
First Prev 4 of 5 Next Last
You must log in or register to reply here.

Similar threads

G
New member
  • gray owl
  • Jan 21, 2026
  • The Welcome Wagon
Replies
9
Views
398
The Welcome Wagon Feb 21, 2026
Rdub6
1976 Cobra II fuse problem - Solved (I hope)
  • Rick Tanner
  • Jan 8, 2025
  • 1974 - 1978 Mustang II Talk & Tech
Replies
2
Views
257
1974 - 1978 Mustang II Talk & Tech Jan 8, 2025
Noobz347
J
Hello all, I have returned from a hiatus... Update and Questions
  • JackH
  • Aug 13, 2025
  • 1974 - 1978 Mustang II Talk & Tech
Replies
6
Views
301
1974 - 1978 Mustang II Talk & Tech Aug 15, 2025
JackH
J
What's it Worth? Trying to determine the approximate worth of my 1976 Cobra II
  • Rick Tanner
  • Aug 22, 2024
  • What is it Worth?!?!?
Replies
2
Views
429
What is it Worth?!?!? Sep 7, 2024
2Blue2
Progress Thread Cobra II Resurrection
  • welder4956
  • Mar 16, 2025
  • 1974 - 1978 Mustang II Talk & Tech
  • 2
Replies
30
Views
1K
1974 - 1978 Mustang II Talk & Tech Apr 25, 2026
welder4956
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1974 - 1978 Mustang II Talk & Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?