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What header gaskets are you guys with ported heads running?

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Old 07-05-2007, 03:05 PM
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What header gaskets are you guys with ported heads running?
Well since my heads are coming off again I'm going to need new header gaskets. I had percys aluminum gaskets, but I didn't like how much smaller the opening is in them compared to the exhaust port so they won't be going back on.
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Old 07-05-2007, 03:18 PM
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You should be able to trim them some. I am using the 1406 (think thats right) FelPro gaskets and they fit well with my LE2 heads. I did trim the top areas just a tad.
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Old 07-05-2007, 03:19 PM
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get some fel pros...
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Old 07-05-2007, 03:35 PM
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Percy's dead-soft.
No leaks and reusable. They kick ***.
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Old 07-05-2007, 03:48 PM
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Originally Posted by James Montigny
Percy's dead-soft.
No leaks and reusable. They kick ***.
Thats what I'm running and the openings on them are alot smaller than my heads.
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Old 07-05-2007, 05:25 PM
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Originally Posted by speed_demon24
Thats what I'm running and the openings on them are alot smaller than my heads.
Should have read your post more clearly, sorry.
How on earth did your ports get so big? Did someone gasket match them?
I'd use whichever gasket they matched to in that case.
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Old 07-05-2007, 05:30 PM
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Originally Posted by James Montigny
Should have read your post more clearly, sorry.
How on earth did your ports get so big? Did someone gasket match them?
I'd use whichever gasket they matched to in that case.
They are LE2 heads I have no idea if he gasket matched them.
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Old 07-05-2007, 05:38 PM
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Originally Posted by speed_demon24
They are LE2 heads I have no idea if he gasket matched them.
Lloyd doesn't gasket match, he's spent enough time with a flowbench to know better.
My LE2 heads worked just fine with Percy's. I'm sorry to hear you're having trouble.
You can try Felpro, but you will likely have the same issue.

Got any pics?
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Old 07-05-2007, 06:21 PM
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Do you have the right Percy's they sell more than 1 sbc gasket?
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Old 07-05-2007, 06:41 PM
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Originally Posted by aboatguy
Do you have the right Percy's they sell more than 1 sbc gasket?
You want the D-port ones, specifically for LT1s.
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Old 07-05-2007, 07:25 PM
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Originally Posted by James Montigny
You want the D-port ones, specifically for LT1s.
No such thing.
Traditional SBC w/ a "D" port head will do.
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Old 07-05-2007, 07:38 PM
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Originally Posted by SS RRR
No such thing.
Traditional SBC w/ a "D" port head will do.
66031 Small Block Chevrolet D-Port LT1 1.375" D-Shape
http://www.jegs.com/webapp/wcs/store...10002_73778_-1
http://store.summitracing.com/partde...5&autoview=sku



Originally Posted by Show All Applications
Make CHEVROLET
Beginning Year 1992
Ending Year 1997
Engine Type V8
Liter 5.7
CID 350
Engine Size 5.7L/350
Engine Family Chevy small block Gen II (LT-based engines)
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Old 07-05-2007, 07:47 PM
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Originally Posted by James Montigny
What I'm saying by that is the LT1 was not the only engine to share a "D" port design.
Those gaskets will bolt up to any SBC head no matter the port.
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Old 07-05-2007, 07:48 PM
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The 1406 is 1.530 in. x 1.630 in. so it should fit better, + I should actually be able to open it up if I have to.
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Old 07-05-2007, 08:03 PM
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Originally Posted by speed_demon24
The 1406 is 1.530 in. x 1.630 in. so it should fit better, + I should actually be able to open it up if I have to.
Hope they work for ya, use good 1" header bolts (preferably locking).
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