GMT400 7.4 headers

[weaponoffreedom]

Since OP hasn't mentioned what vehicle he has, and this is his intro:



Since his topic is "GMT400 7.4 headers" we can probably assume he means for the '99 K2500 Suburban 7.4.



So, there's that..

Richard

correct. i recently bought a Banks power pack headers for my RV and then the good idea fairy flew over my head..........

 

[WojTec]

I'm running a set of modified tbi long tubes, so is @Dropped88

Could you share some pics?- how Patriots fits on passanger side?

 

[618 Syndicate]

Could you share some pics?- how Patriots fits on passanger side?

This is actually @Dropped88 truck but same headers and same truck. CCLBD

 

[WojTec]

This is actually @Dropped88 truck but same headers and same truck. CCLBD

The yellow marking is a collision of AC to evaporator?
Tight fit....
Iam lookin on Pertronix H8058 Right?

 

[618 Syndicate]

The yellow marking is a collision of AC to evaporator?
Tight fit....

No collision. They fit fine.

Iam lookin on Pertronix H8058 Right?

Yes, if you can find them.

 

[WojTec]

I have aa set and waiting to install. I had to spend some time to make them.... better.
Firts of all - I re - welded them outide the pipe to flange
Then porting pipes
Flange to head surface was milled,
Finally they were ceramic painted to black

I have some pictures I can share. Out of box impresion on this product for me ...dissapointing but there were no other choice that time so decided to upgrade it.

I will post some picture.

A question:
What gasket will be the best if my flange is now flat. I got gaskets in the box but for me quality of them is doubtful.
Also go screws in a kit. But I will prefer to use threde studs - what is a better for aftermerket headers in your opinion.

Instalation is a bit complicado and refiting them after finding a leak...will be a drama job.

PS (sorry for my english - still learning and still make spelling)

 

[Sean Buick 76]

I use Remflex gaskets in all of my header installs. I think ARP sells header stud kits but I’ve only ever used the ARP bolts with the smaller bolt heads as it’s easier to tighten vs larger ones. 30 food pounds on these gaskets and they will likely never leak or need to be retightened.

 

[WojTec]

No collision. They fit fine.

Yes, if you can find them.

One more question. H8058 will fit for sure K2500 ? I see fron tower in your picture is a 2WD. Right ?

 

[618 Syndicate]

One more question. H8058 will fit for sure K2500 ? I see fron tower in your picture is a 2WD. Right ?

I don't know if they'll fit the 4wd trucks. Yes, the truck in the picture (not mine) is a 2wd, mine is as well. @BNielsen is gonna try a set on a 4wd I think.

 

[618 Syndicate]

I have aa set and waiting to install. I had to spend some time to make them.... better.
Firts of all - I re - welded them outide the pipe to flange
Then porting pipes
Flange to head surface was milled,
Finally they were ceramic painted to black

I have some pictures I can share. Out of box impresion on this product for me ...dissapointing but there were no other choice that time so decided to upgrade it.

I will post some picture.

A question:
What gasket will be the best if my flange is now flat. I got gaskets in the box but for me quality of them is doubtful.
Also go screws in a kit. But I will prefer to use threde studs - what is a better for aftermerket headers in your opinion.

Instalation is a bit complicado and refiting them after finding a leak...will be a drama job.

PS (sorry for my english - still learning and still make spelling)

Your English is fine, better than my Polish for sure!
I agree that the quality isn't the greatest, but for the price I was satisfied.
I'll let someone else speak to your gasket question, I used what they sent. In my opinion studs are best, then allen head bolts, then regular bolts in that order.