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Hemi intake gaskets #2950790
08/05/21 06:11 PM
08/05/21 06:11 PM
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UPPER MICHIGAN, MARQUETTE COUN...
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NITROUSN Offline OP
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Iron heads and intake. What is best to seal around the ports. To me it almost looks like the bottom of the gaskets could of been sucking some oil in. Just want to seal it up once and for all. Also the intake torgue is 72 inch pounds on the inner four and 48 inch pounds on the outer two on each side. Why not 72 all around.

Re: Hemi intake gaskets [Re: NITROUSN] #2950806
08/05/21 07:14 PM
08/05/21 07:14 PM
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Hot Rod Ridge
FastmOp Offline
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Hot Rod Ridge
Superformance

Re: Hemi intake gaskets [Re: NITROUSN] #2950859
08/05/21 09:19 PM
08/05/21 09:19 PM
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Bend,OR USA
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Cab_Burge Offline
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I would measure the clearances at the top of the intake and at the bottom to see if there is any taper or not without gaskets and go from there. scope wrench
I have had to have more than one aluminum Mopar intake squared up to make the gaskets fit properly rant


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Hemi intake gaskets [Re: NITROUSN] #2950965
08/06/21 09:26 AM
08/06/21 09:26 AM
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Stuttgart, Arkansas
rickseeman Offline
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Originally Posted by NITROUSN
Iron heads and intake. What is best to seal around the ports. To me it almost looks like the bottom of the gaskets could of been sucking some oil in. Just want to seal it up once and for all. Also the intake torque is 72 inch pounds on the inner four and 48 inch pounds on the outer two on each side. Why not 72 all around.


As Cab said, set the intake on there and make sure the gap for the gasket is parallel. I would assume the intake torque is less on the ends to keep from bowing the intake. I wouldn't spend a lot of time rethinking their torque specs. To do it properly you will have to go thru the torque pattern a dozen times. It takes awhile. It takes a dial (or beam) type torque wrench because of the 2 different torque values. After half a dozen heat cycles it wouldn't hurt to recheck.


2011 Drag Pak Challenger
Re: Hemi intake gaskets [Re: rickseeman] #2950968
08/06/21 09:36 AM
08/06/21 09:36 AM
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Benton, IL.
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DaveRS23 Offline
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For better or worse, the Superformance gaskets are harder than most. They take far fewer re-torques than other intake gaskets I have used and hold their torque much better than most others. But I am not sure they seal quite as well as some others on intakes that aren't a good fit to the head because they are harder.


Master, again and still
Re: Hemi intake gaskets [Re: DaveRS23] #2951426
08/07/21 04:10 PM
08/07/21 04:10 PM
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Tennessee
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Hemi ragtop Offline
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Tennessee
I tried everything, couldn’t get the intake to not seep oil. I had a friend program a CNC mill to engrave a groove to accept a Viton gasket. No more leaks! About $350 but problem solved!

A74AD625-FB20-40BA-B327-BABD93CD69DB.jpeg
Re: Hemi intake gaskets [Re: NITROUSN] #2951431
08/07/21 04:31 PM
08/07/21 04:31 PM
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Houston,Tx.
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Lee446 Offline
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Used Fel pro, Mr. Gasket, never could get them to seal well and they had to be retorqued frequently. Changed to Superformance and have never looked back and never had to retorque after the post warm up retorque. That was several years ago and several intake manifold changes.

Re: Hemi intake gaskets [Re: Lee446] #2951475
08/07/21 07:31 PM
08/07/21 07:31 PM
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Fort Walton Beach
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mothermopar Offline
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Another vote for superformance gaskets. Just used them on a build this week.

Last edited by mothermopar; 08/07/21 07:32 PM.

1969 Superbee, Hemi, 4 Spd, Supertrack Pack
2007 Dodge Ram 2500, 4x4, 5.9 Cummins
Re: Hemi intake gaskets [Re: Hemi ragtop] #2951518
08/07/21 10:59 PM
08/07/21 10:59 PM
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fredericksburg,va
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cudaman1969 Offline
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fredericksburg,va
Originally Posted by Hemi ragtop
I tried everything, couldn’t get the intake to not seep oil. I had a friend program a CNC mill to engrave a groove to accept a Viton gasket. No more leaks! About $350 but problem solved!

This is what should have been done from the start. I think I’ll pm you about getting mine done.

Re: Hemi intake gaskets [Re: Hemi ragtop] #2951526
08/08/21 02:00 AM
08/08/21 02:00 AM
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Bend,OR USA
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Cab_Burge Offline
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Bend,OR USA
Originally Posted by Hemi ragtop
I tried everything, couldn’t get the intake to not seep oil. I had a friend program a CNC mill to engrave a groove to accept a Viton gasket. No more leaks! About $350 but problem solved!

That is the way both sets of stage V Hemi heads I have bought and used came up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Hemi intake gaskets [Re: Cab_Burge] #2951954
08/09/21 08:22 AM
08/09/21 08:22 AM
Joined: Jan 2003
Posts: 13,363
Marion, South Carolina [><]
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The O-ring deal looks awesome! Go that way if possible b/c hemi intake gaskets can be a pain. The next time I have mine apart, I'll likely get that done.

Having said that, I've had great luck w/ the Superformance gaskets. They seem to take a setting quick as far as torque and seal up great. The Mr. Gasket and Fel Pros required constant retorquing.


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax






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