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906 Head Water Jacket Location Question?? #425086
07/31/09 09:02 PM
07/31/09 09:02 PM
Joined: Jan 2003
Posts: 2,179
Walton, Indiana
TimS Offline OP
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TimS  Offline OP
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Looking for the exhaust manifold stud areas that go into water jackets on a 906 head. I know that when looking at the LH side one of the jackets is at the rear( firewall) stud. What others up that LH side head also have exhaust manifold studs that screw into jackets? Thanks!


1968 Barracuda Fastback 318-2BBL 904 2.76 Frost Blue Survivor
1970 Roadrunner 440+6 BBL 727 AT 4.10 SG Dana Blue Fire Metallic
1971 Cuda 340-4 BBL 4spd 3.91 SG Curious Yellow
1972 Barracuda 318-2 BBL 904 AT 3.23 1 Legger Tor Red/White Vinyl Top
2007 Dodge Ram 1500 5.7 Hemi AT Patriot Blue
2011 Dodge Challenger RT 5.7 Hemi 6spd 392 SG Triple Black
2014 Dodge Charger RT Max AWD 5.7 Hemi AT 305 Billet Silver
Re: 906 Head Water Jacket Location Question?? [Re: TimS] #425087
07/31/09 09:28 PM
07/31/09 09:28 PM
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Posts: 17,863
albany ny
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05dakota Offline
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all the exhaust manifold bolt holes are into the water jackets

Re: 906 Head Water Jacket Location Question?? [Re: 05dakota] #425088
07/31/09 09:44 PM
07/31/09 09:44 PM
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Posts: 2,179
Walton, Indiana
TimS Offline OP
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I didn't realize that. I had always thought that some where and some weren't. I have one of the studs near the #5 plug that is weeping but really trying to figure out if it's truly the stud or possibly a crack in that area. I've siliconed that stud once already and it still seeps. Enough that when I run the car to temp with a 16lb rad cap it steams when hot. Been a headache.


1968 Barracuda Fastback 318-2BBL 904 2.76 Frost Blue Survivor
1970 Roadrunner 440+6 BBL 727 AT 4.10 SG Dana Blue Fire Metallic
1971 Cuda 340-4 BBL 4spd 3.91 SG Curious Yellow
1972 Barracuda 318-2 BBL 904 AT 3.23 1 Legger Tor Red/White Vinyl Top
2007 Dodge Ram 1500 5.7 Hemi AT Patriot Blue
2011 Dodge Challenger RT 5.7 Hemi 6spd 392 SG Triple Black
2014 Dodge Charger RT Max AWD 5.7 Hemi AT 305 Billet Silver
Re: 906 Head Water Jacket Location Question?? [Re: TimS] #425089
07/31/09 09:58 PM
07/31/09 09:58 PM
Joined: Jan 2003
Posts: 33,005
Grand Prairie,Texas
stumpy Offline
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Grand Prairie,Texas
Edited do to old timers brain fart. Dakota is correct I was wrong. Small block end holes are wet big block all are.

Last edited by stumpy; 07/31/09 10:45 PM.
Re: 906 Head Water Jacket Location Question?? [Re: stumpy] #425090
07/31/09 10:10 PM
07/31/09 10:10 PM
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Posts: 17,863
albany ny
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05dakota Offline
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thats exactly backwards

Re: 906 Head Water Jacket Location Question?? [Re: stumpy] #425091
07/31/09 11:13 PM
07/31/09 11:13 PM
Joined: Jan 2003
Posts: 2,179
Walton, Indiana
TimS Offline OP
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TimS  Offline OP
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Posts: 2,179
Walton, Indiana
I think that's were my confusion started to. Lately I've worked on more small blocks than Big. 340 mainly. I got some Hi temp permatex dope from NAPA today to try the exercise again of coating the threads.


1968 Barracuda Fastback 318-2BBL 904 2.76 Frost Blue Survivor
1970 Roadrunner 440+6 BBL 727 AT 4.10 SG Dana Blue Fire Metallic
1971 Cuda 340-4 BBL 4spd 3.91 SG Curious Yellow
1972 Barracuda 318-2 BBL 904 AT 3.23 1 Legger Tor Red/White Vinyl Top
2007 Dodge Ram 1500 5.7 Hemi AT Patriot Blue
2011 Dodge Challenger RT 5.7 Hemi 6spd 392 SG Triple Black
2014 Dodge Charger RT Max AWD 5.7 Hemi AT 305 Billet Silver
Re: 906 Head Water Jacket Location Question?? [Re: TimS] #425092
08/01/09 07:06 AM
08/01/09 07:06 AM
Joined: Jan 2003
Posts: 2,179
Walton, Indiana
TimS Offline OP
top fuel
TimS  Offline OP
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Joined: Jan 2003
Posts: 2,179
Walton, Indiana
Thanks for the info. I'll know tonight if the new dope worked. It's cure time is 24hrs so I plan to wait the full time and then see. If it leaks again, pulling the exhaust manifold and pressurizing the system is probably the best way to pinpoint the leak. It's in an area where the exhaust manifold covers it.


1968 Barracuda Fastback 318-2BBL 904 2.76 Frost Blue Survivor
1970 Roadrunner 440+6 BBL 727 AT 4.10 SG Dana Blue Fire Metallic
1971 Cuda 340-4 BBL 4spd 3.91 SG Curious Yellow
1972 Barracuda 318-2 BBL 904 AT 3.23 1 Legger Tor Red/White Vinyl Top
2007 Dodge Ram 1500 5.7 Hemi AT Patriot Blue
2011 Dodge Challenger RT 5.7 Hemi 6spd 392 SG Triple Black
2014 Dodge Charger RT Max AWD 5.7 Hemi AT 305 Billet Silver






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