Best header seals/gasket?
02-02-2012, 09:08 PM
#1
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Car: 1991 Z-28
Engine: 5.7L(350ci) TPI L98
Transmission: 700r4
Axle/Gears: G92
Best header seals/gasket?
To start off, I have a 1991 Z28 with a stock L98. I recently purchased Dyno Don's headers, and was recommended to get the seals from earlsplumbing. Well they have now been on backorder for 2 months (I havent had time to work on the car, so it wasnt an issue until now.)
I would just like to know which brand/material/etc header seals wouldbe best for my engine. It is a daily driver so i want something durable with the least chance for leaking
Feel freeto suggest specific part numbers.
.
Also, I am not that familiar with exhaust, so I am not sure whether i have a D port or O port or what, could someone please explain this to me. Thank you in advance for any help!:-):-)
I would just like to know which brand/material/etc header seals wouldbe best for my engine. It is a daily driver so i want something durable with the least chance for leaking
Feel freeto suggest specific part numbers.
.
Also, I am not that familiar with exhaust, so I am not sure whether i have a D port or O port or what, could someone please explain this to me. Thank you in advance for any help!:-):-)
02-02-2012, 09:14 PM
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Car: 84 trans am
Engine: 350 bored .020 over
Transmission: TH350 w/ stage 2 B&M shift kit
Axle/Gears: 9 bolt/3.27
Re: Best header seals/gasket?
Get a felpro gasket, they always work for me. Do not get anything Mr.Gasket it is cheap!
02-02-2012, 10:02 PM
#3
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Best header seals/gasket?
Fel-pro 1404 or 1405 or 1406 or 1407 ish
Use 1" bolts (3/8ths head) with anti-seize.
Use 1" bolts (3/8ths head) with anti-seize.
02-03-2012, 08:28 PM
#5
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Re: Best header seals/gasket?
I have had really good luck with the thick graffite gasket and the locking header bolts
02-03-2012, 08:30 PM
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Car: 86 Camaro, IROC springs & bars
Engine: Mild 350,Q-jet,headers
Transmission: M-21, 12#flywheel
Axle/Gears: 98 7.5, 3.73 torsen.
Re: Best header seals/gasket?
Lots of materials & opinions on exh gsks. I personally prefer dead soft copper or aluminum. The coppers been on my truck for about 11 years, when reusing just use a small amount of red silicone, holds up well.
02-03-2012, 10:03 PM
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Car: 92 T/A 'vert
Engine: Mild .040 over L98 4 bolt mains
Transmission: Mostly stock 700R4, 2600 Vigilante
Axle/Gears: LS1 3.42
Re: Best header seals/gasket?
Percy's aluminum.
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02-12-2012, 06:21 PM
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Car: 1990 G92 IROC Z Miniram
Engine: 388cu 6.4 Liters
Transmission: G-Force T5
Axle/Gears: 3.73 Gears
Re: Best header seals/gasket?
Fel-pro sucks! Get the other one mention above. They will never blow out like Fel-pro. Example, if paper gasket get wet or if the bolts come loose the gaskets will blow out of fall apart. The other can be reused.
02-13-2012, 05:57 PM
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Car: 1991 Z-28
Engine: 5.7L(350ci) TPI L98
Transmission: 700r4
Axle/Gears: G92
Re: Best header seals/gasket?
Well, I ordered the FelPro gaskets, as my plan was to use them in the car simply until the Earls Plumbing ones were off back order since the felpro were only like $15 with free shipping.... but surprise surprise, they told me at least 2 more weeks for the earls plumbing, but as soon as the fel pros shipped, half a day later the earls plumbing gaskets shipped! Oh well, I guess I'll just have an extra pair of SBC header gaskets now, its not like there aren't enough vehicles with 350s in them among my family and friends....
02-13-2012, 06:11 PM
#11
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Re: Best header seals/gasket?
What are Earls made out of copper? That could be a stupid question.
02-13-2012, 06:14 PM
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Car: 1991 Z-28
Engine: 5.7L(350ci) TPI L98
Transmission: 700r4
Axle/Gears: G92
Re: Best header seals/gasket?
02-13-2012, 06:19 PM
#13
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Re: Best header seals/gasket?
All right I have had good luck with this type of gasket and the locking header bolts.
02-13-2012, 06:22 PM
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Car: 1991 Z-28
Engine: 5.7L(350ci) TPI L98
Transmission: 700r4
Axle/Gears: G92
Re: Best header seals/gasket?
Great! I'm using those gaskets and the ARP bolts and washer kit for the headers.
02-13-2012, 06:26 PM
#15
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Re: Best header seals/gasket?
You can look forward to a trouble free setup.
02-14-2012, 08:17 PM
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Car: 85 Trans Am
Engine: 98 Vortec 350 LT1 Cam w/ TPI
Transmission: T56
Axle/Gears: 9 bolt 3:27
Re: Best header seals/gasket?
http://catalog.remflex.com/
Best headers gaskets I ever used. The only bad thing is they are not re-usable.
Best headers gaskets I ever used. The only bad thing is they are not re-usable.
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