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Epoxy/metal filler that will hold up in exhaust port? #2678256
07/17/19 10:44 AM
07/17/19 10:44 AM
Joined: Jan 2003
Posts: 1,134
Columbus, GA
Michael Ecks Offline OP
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Michael Ecks  Offline OP
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Joined: Jan 2003
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Columbus, GA
Does such a thing exist? I have a pair of aluminum heads I bought used, not noticing that the exhaust ports have been opened up nearly to W2 size. With the standard headers, this would have a good amount of exhaust gas flow crashing into the header flange. I think there is enough material to seal, but I would prefer to be able smooth out the transition from the exhaust runner into the header.

This will be for a driver/street stroker. So it has to be a fix that will last more than a race or a season


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Re: Epoxy/metal filler that will hold up in exhaust port? [Re: Michael Ecks] #2678261
07/17/19 11:03 AM
07/17/19 11:03 AM
Joined: Apr 2003
Posts: 2,473
Tulsa, Oklahoma
340Cuda Offline
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340Cuda  Offline
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Joined: Apr 2003
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Tulsa, Oklahoma
I don't think what you are looking for exists.

However aluminum heads can be easily welded up.

Re: Epoxy/metal filler that will hold up in exhaust port? [Re: Michael Ecks] #2678293
07/17/19 01:03 PM
07/17/19 01:03 PM
Joined: Dec 2003
Posts: 17,824
Trumussia
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jcc Offline
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jcc  Offline
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Trumussia
The max I have ever read about epoxy based is around 500F, and that is expensive, so my answer to your question is, no.

Re: Epoxy/metal filler that will hold up in exhaust port? [Re: jcc] #2678694
07/18/19 02:01 PM
07/18/19 02:01 PM
Joined: Jan 2012
Posts: 1,797
Stuttgart, Arkansas
rickseeman Offline
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Stuttgart, Arkansas
I wouldn't bother with epoxy/metal when the known fix is easy. Weld and grind.


2011 Drag Pak Challenger
Re: Epoxy/metal filler that will hold up in exhaust port? [Re: rickseeman] #2678888
07/18/19 10:09 PM
07/18/19 10:09 PM
Joined: Aug 2006
Posts: 1,986
God's Country Maryland
GODSCOUNTRY340 Offline
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God's Country Maryland
Grind the header flange to match the ports.


I love the smell of Deer guts in the morning, it smells like... VICTORY!
Re: Epoxy/metal filler that will hold up in exhaust port? [Re: GODSCOUNTRY340] #2679013
07/19/19 10:11 AM
07/19/19 10:11 AM
Joined: Jan 2003
Posts: 13,440
Eagle, Idaho
Neil Offline
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Neil  Offline
I Live Here

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Posts: 13,440
Eagle, Idaho
Yes, you can weld on the outside of the header tube/flange connection and grind the inside opening bigger to a point.

Re: Epoxy/metal filler that will hold up in exhaust port? [Re: Neil] #2679154
07/19/19 04:40 PM
07/19/19 04:40 PM
Joined: Oct 2005
Posts: 7,038
Ontario, Canada
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Stanton Offline
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Stanton  Offline
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Joined: Oct 2005
Posts: 7,038
Ontario, Canada
Originally Posted by Neil
Yes, you can weld on the outside of the header tube/flange connection and grind the inside opening bigger to a point.


I can't see the headers making it around the block after this mod !! The weld on the thin gauge tube will make them brittle - the main reason virtually every header is welded on the inside of the flange.

Re: Epoxy/metal filler that will hold up in exhaust port? [Re: Stanton] #2679168
07/19/19 05:20 PM
07/19/19 05:20 PM
Joined: Jan 2003
Posts: 12,190
So. Burlington, Vt.
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fast68plymouth Offline
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fast68plymouth  Offline
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So. Burlington, Vt.
Obviously, the correct solution is to weld the heads up.

Whether or not the heads in question are worth the time and $$$ to go through that is another story.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Epoxy/metal filler that will hold up in exhaust port? [Re: fast68plymouth] #2679181
07/19/19 05:58 PM
07/19/19 05:58 PM
Joined: May 2019
Posts: 393
nowhere
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Sniper Offline
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Sniper  Offline
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Originally Posted by fast68plymouth
Obviously, the correct solution is to weld the heads up.



They make W2 headers you know,

Re: Epoxy/metal filler that will hold up in exhaust port? [Re: Sniper] #2679204
07/19/19 07:52 PM
07/19/19 07:52 PM
Joined: Jan 2003
Posts: 12,190
So. Burlington, Vt.
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fast68plymouth Offline
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fast68plymouth  Offline
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Joined: Jan 2003
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So. Burlington, Vt.
Originally Posted by Sniper
Originally Posted by fast68plymouth
Obviously, the correct solution is to weld the heads up.



They make W2 headers you know,


Don’t dedicated W2 headers use the W2 bolt pattern?


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Epoxy/metal filler that will hold up in exhaust port? [Re: fast68plymouth] #2679217
07/19/19 08:28 PM
07/19/19 08:28 PM
Joined: May 2019
Posts: 393
nowhere
S
Sniper Offline
We know who you are
Sniper  Offline
We know who you are
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Joined: May 2019
Posts: 393
nowhere
Drilling holes is easier than welding exhaust ports.

Re: Epoxy/metal filler that will hold up in exhaust port? [Re: Sniper] #2679251
07/19/19 10:18 PM
07/19/19 10:18 PM
Joined: Jan 2003
Posts: 13,695
So Near, Yet So Far
topside Offline
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topside  Offline
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Joined: Jan 2003
Posts: 13,695
So Near, Yet So Far
W2 to LA header flange adapters, if you have room to space your header outwards.


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