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Author
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Topic: getting heads o-ringed
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92_5.0
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Member # 7624
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posted
 
 
Im changing the head gaskets and have the heads pulled off, should I have them O-ringed before installing them?
Edelbrock aluminum performers
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Infineon/Sears point? same difference!
11.8 @ 115 mph @ Sac Raceway
411 rwhp 402 trq (old set up)
540 rwhp 517 rwtrq (new set up)
ET's to come
Posts: 1629 | From: bay area | Registered: May 2007
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89foxstang
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Member # 5908
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posted
depends on your setup, if you are running really high compression, nitrous or high boost, then i would lean towards yes, but i have no idea what your setup is
Posts: 825 | From: Davis | Registered: Aug 2005
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92_5.0
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Member # 7624
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posted
this is a H/C/I, vortech S-trim 8-10 psi, full bolt ons, full exhaust set up. 9:5:1 comp
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Infineon/Sears point? same difference!
11.8 @ 115 mph @ Sac Raceway
411 rwhp 402 trq (old set up)
540 rwhp 517 rwtrq (new set up)
ET's to come
Posts: 1629 | From: bay area | Registered: May 2007
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STANGSALLY76
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Member # 5342
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posted
dont waste your money on o-ring just get a nice
set of cometic head gaskets and arp stud kit.
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92 LX deep into the 10's on the motor with street tires coming soon
its just a little small block
Posts: 1133 | From: Sacramento | Registered: Feb 2005
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lxhatch5.0
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Member # 6319
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Yeah im with Stangsally, and dont you need to have an o-ringed block for oringed heads to fit?
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*NorCal
Posts: 1556 | Registered: Dec 2005
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92_5.0
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Member # 7624
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posted
quote:
Originally posted by STANGSALLY76:
dont waste your money on o-ring just get a nice
set of cometic head gaskets and arp stud kit.
Thanks man, I wont do the O-rings. by the way, how much does it cost to do that?
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Infineon/Sears point? same difference!
11.8 @ 115 mph @ Sac Raceway
411 rwhp 402 trq (old set up)
540 rwhp 517 rwtrq (new set up)
ET's to come
Posts: 1629 | From: bay area | Registered: May 2007
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JohnB
Tech Moderator
Member # 969
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posted
Cometic's are a complete waste for a replacement application. Unless the machine work (less than 50 RA) prep to the head surface has already been done, you will not get a good efficient sealing surface.
You'd be better off with a FelPro 9333 gasket and a good tune when doing a swapout like yours. Also, if it popped a HG, you need to find the root cause and not just throw parts at it. ![[Wink]](wink.gif)
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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2stangs69-91
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Member # 1951
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posted
you need the same prep on the block as the heads with cometics. I o-ringed my block last year(borrowed a tool did it my self) so far it is working great. I have even seen were people o-ring blocks or heads and use the felpro gakets JohnB mentioned. In a perfect world you do not need it or if you can afford all the dyno tuning and feed back control systems.
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69 Mustang on hold
1991 LX hatch getting a make over
1994 F150 4X4 351
2006 Yamaha V-max 1200 Modded
Posts: 3711 | From: Redding | Registered: Oct 2002
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92_5.0
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Member # 7624
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posted
quote:
Originally posted by JohnB:
Cometic's are a complete waste for a replacement application. Unless the machine work (less than 50 RA) prep to the head surface has already been done, you will not get a good efficient sealing surface.
You'd be better off with a FelPro 9333 gasket and a good tune when doing a swapout like yours. Also, if it popped a HG, you need to find the root cause and not just throw parts at it.
the root cause was detination due to me being throttle happy before getting it to the tuner lol. I think im just gonna go with an $80 felpro MLS gasket and trailer it to the tuner. If I can afford it, would it be worth it in the long run to buy a set of expensive heavy duty gaskets?
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Infineon/Sears point? same difference!
11.8 @ 115 mph @ Sac Raceway
411 rwhp 402 trq (old set up)
540 rwhp 517 rwtrq (new set up)
ET's to come
Posts: 1629 | From: bay area | Registered: May 2007
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92_5.0
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Member # 7624
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posted
Hey John, I think I met you before? maybe last year in sacramento at the ampm right before the track, you were in your lifted white ford pickup? I was in my white 92 Lx pumpin gas right next to you and you asked if I was a member to this site lol. ![[patriot]](graemlins/patriot.gif)
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Infineon/Sears point? same difference!
11.8 @ 115 mph @ Sac Raceway
411 rwhp 402 trq (old set up)
540 rwhp 517 rwtrq (new set up)
ET's to come
Posts: 1629 | From: bay area | Registered: May 2007
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2stangs69-91
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Member # 1951
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posted
quote:
Originally posted by 92_5.0:
quote:
Originally posted by JohnB:
Cometic's are a complete waste for a replacement application. Unless the machine work (less than 50 RA) prep to the head surface has already been done, you will not get a good efficient sealing surface.
You'd be better off with a FelPro 9333 gasket and a good tune when doing a swapout like yours. Also, if it popped a HG, you need to find the root cause and not just throw parts at it.
the root cause was detination due to me being throttle happy before getting it to the tuner lol. I think im just gonna go with an $80 felpro MLS gasket and trailer it to the tuner. If I can afford it, would it be worth it in the long run to buy a set of expensive heavy duty gaskets?
I believe felpro MlS gaskets need the better finish also or you will seap water...
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69 Mustang on hold
1991 LX hatch getting a make over
1994 F150 4X4 351
2006 Yamaha V-max 1200 Modded
Posts: 3711 | From: Redding | Registered: Oct 2002
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JohnB
Tech Moderator
Member # 969
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posted
quote:
Originally posted by 92_5.0:
Hey John, I think I met you before? maybe last year in sacramento at the ampm right before the track, you were in your lifted white ford pickup? I was in my white 92 Lx pumpin gas right next to you and you asked if I was a member to this site lol.
Yup, quite possible~ and I ALWAYS try to ask around and get the word out about the website! ![[Cool]](cool.gif)
And yes, the FelPro MLS gaskets will leak in a street application, especially around the lower head bolts...even with sealing the threads. 9333's for the win. ![[Smile]](smile.gif)
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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GOT 50
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Member # 1960
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posted
Hmm blown head gasket or bent rod?
Ill take a blown head gasket 9333's for the win!!
Posts: 2139 | From: SF/DALY CITY/MILLBRAE | Registered: Oct 2002
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2stangs69-91
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Member # 1951
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posted
hmmm I have used o-rings and comectics never bent a rod? You need better rods obviously.
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69 Mustang on hold
1991 LX hatch getting a make over
1994 F150 4X4 351
2006 Yamaha V-max 1200 Modded
Posts: 3711 | From: Redding | Registered: Oct 2002
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WickedStang
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Member # 7692
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posted
quote:
Originally posted by JohnB:
quote:
Originally posted by 92_5.0:
Hey John, I think I met you before? maybe last year in sacramento at the ampm right before the track, you were in your lifted white ford pickup? I was in my white 92 Lx pumpin gas right next to you and you asked if I was a member to this site lol.
Yup, quite possible~ and I ALWAYS try to ask around and get the word out about the website!
And yes, the FelPro MLS gaskets will leak in a street application, especially around the lower head bolts...even with sealing the threads. 9333's for the win.
Here u go from Kragens, cant beat the price
http://www.partsamerica.com/ProductDetail.aspx?MfrCode=FEL&MfrPartNumber=9333PT1&PartType=100&PTSet=A
I have ran this in a high comp motor with some juice and no problem! Just make sure ur head aint warped.
[ November 27, 2008, 08:46 PM: Message edited by: WickedStang ]
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04 mach1 BASSANI EXHAUST/C&L INTAKE
67STANG/CHP 347/BUILT C4/MOROSO DRAG SUSP.
Posts: 1581 | From: salinas831 | Registered: May 2007
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GOT 50
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Member # 1960
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posted
quote:
Originally posted by 2stangs69-91:
hmmm I have used o-rings and comectics never bent a rod? You need better rods obviously.
Yes Obviously.
I much rather have the weak link in my engine be a rod then a headgasket that wont blow.
Posts: 2139 | From: SF/DALY CITY/MILLBRAE | Registered: Oct 2002
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2stangs69-91
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Member # 1951
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posted
lol what makes you think cometic's won't blow or burn?
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69 Mustang on hold
1991 LX hatch getting a make over
1994 F150 4X4 351
2006 Yamaha V-max 1200 Modded
Posts: 3711 | From: Redding | Registered: Oct 2002
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