Mopar 440 Big block header bolts.

[Jamesjames]

I know approximately 400 million posts have existed about header bolts leaking on a 440. I don’t have a question as I have read all of them. I’m just saying that this has to be the worst design in the history of engines. Hope this Harvey’s TFT paste works because permatex thread sealer did not.

 

[4mulas]

Why not just use studs on the ends?

 

[Jamesjames]

Why not just use studs on the ends?

I got headers and I used bolts..

 

[Ernie ingling]

Studs on each end if possible teflon sealant and drive

 

[multimopes]

If you read a bunch of threads about it you must know that the reason the studs are better is they have a shoulder on them which seals against the head. However, I am also aware that trying to fit headers with the engine installed creates issues with clearance over the studs. You're damned if you do & damned if you don't!

 

[Gort]

Yep...Worst design ever...Stud it and deal with lifting the motor whenever you wanna do anything...OR deal with putting HP manifolds on it...

I just did head gaskets on mine and it exactly reminds me of why I don’t like headers…

 

[beanhead]

Or, just learn to seal a wet bolt.....'worst design ever" lol

 

[moparedtn]

Like others no doubt, I like having the studs on the ends also - makes it a ton easier to hang the
headers (and the gaskets, for that matter) on.
Especially helpful if you're running some of the cheaper headers, like the God-awful Hedman 2" on
Fred, colossal pains that they are...
Sealing threads is second nature to me (40+ year fire sprinkler guy). Usually, a little dab of "blue" gets
the job done - but on severely worn stuff, maybe a little teflon tape plus sealant on top of that to build
thickness (don't use too much teflon though or some fellas will bitch at ya - "that crap will get loose in
the cooling system!!" Oy.).

 

[Gort]

Or, just learn to seal a wet bolt.....'worst design ever" lol

View attachment 1141880

How would you seal rusty damaged threads in an older head? And would that work on a helicoil?

 

[Jamesjames]

Or, just learn to seal a wet bolt.....'worst design ever" lol

View attachment 1141880

Learn how to seal deez

 

[69hemibeep]

After market heads

 

[Nevada dan]

you can use a stud like a bolt with the headers in place, just double nut the end locking the nuts together, install with sealant ,tape , what ever, run the stud in tight , break the nuts apart with 2 wrenches, remove outer nut, tighten down header

 

[WileERobby]

Worst design ? Hardly. Studs & one bolt with sealant on the pipe with minimal access. Been working without problems for 50 years + ...

 

[Daves69]

.....I’m just saying that this has to be the worst design in the history of engines........

Well, I'm thinking the engine design was not specked for use with headers. Could it possibly be the header design that's flawed?
Maybe get some tri-y's. I think you can use studs on all the holes......

 

[440 Charger]

Yep...Worst design ever...Stud it and deal with lifting the motor whenever you wanna do anything...OR deal with putting HP manifolds on it...

I just did head gaskets on mine and it exactly reminds me of why I don’t like headers…View attachment 1141825

Then you picked the wrong car.

 

[70chall440]

The Tri-Y's are great but I don't know if anyone makes them anymore that Schumacher is out of business.

 

[multimopes]

The Tri-Y's are great but I don't know if anyone makes them anymore that Schumacher is out of business.

Unless I am mistaken, I believe that Doug's makes them; or at least maybe they used to.

 

[70chall440]

You are correct, I just looked them up but they don't seem to have a large selection. I have Schumacher's on my Challenger (440) and I really like them.

 

[khryslerkid]

For the 2,000th time...

 

[multimopes]

Good to know , thanks. If I ever get headers again it's tri-Y's or nothing for me!