need help with a gasket?
Thread Starter
Member
Joined: Apr 2008
Posts: 446
Likes: 3
From: Smiths Falls
Car: 1988 GTA Trans am 1 owner since new
Engine: 383 built
Transmission: 1995 camaro t56 6 speed
Axle/Gears: 3.24 posi 9 bolt
need help with a gasket?
i have a 88 gta
I have flow tech shorty headers y pipe and magnaflow cat back exh
I have had the headers for 3 years
and I cant seem to keep a 2.5" diameter 3 bolt gasket in it where the y pipe connects on the headers
there are 2
the remflex ones just blow out within weeks
I don't know what to use
does anyone have a idea
I saw some mr gasket soft aluminum ones for it ????
ty!
I have flow tech shorty headers y pipe and magnaflow cat back exh
I have had the headers for 3 years
and I cant seem to keep a 2.5" diameter 3 bolt gasket in it where the y pipe connects on the headers
there are 2
the remflex ones just blow out within weeks
I don't know what to use
does anyone have a idea
I saw some mr gasket soft aluminum ones for it ????
ty!
Joined: Sep 2005
Posts: 27,893
Likes: 2,436
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: need help with a gasket?
https://www.summitracing.com/parts/sum-672325
https://www.summitracing.com/parts/flo-15938
Get rid of that worthless 3-bolt crap and put something else on there that might actually work.
https://www.summitracing.com/parts/flo-15938
Get rid of that worthless 3-bolt crap and put something else on there that might actually work.
Supreme Member




Joined: Oct 2004
Posts: 4,527
Likes: 240
From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: need help with a gasket?
I have had good luck with solid aluminum gaskets like these.
https://www.speedwaymotors.com/Flowt...ch,140847.html
https://www.speedwaymotors.com/Flowt...ch,140847.html
Joined: Mar 2017
Posts: 4,255
Likes: 427
From: Portland, OR
Car: 86 Imponte Ruiner 450GT, 91 Formula
Engine: 350 Vortec, FIRST TPI, 325 RWHP
Transmission: 700R4 3000 stall.
Axle/Gears: 9 Bolt Torsen 3.70
Re: need help with a gasket?
Yeah the problem with the 3 bolt stuff is that it's very difficult to get the flanges perfectly parallel so you get even clamping force. Then the junk warps when it gets hot......
Either weld flex joints into the Y pipe or ditch the 3 bolt system. You will have nothing but problems till you take one of those routes.
GD
Either weld flex joints into the Y pipe or ditch the 3 bolt system. You will have nothing but problems till you take one of those routes.
GD
Joined: Sep 2005
Posts: 27,893
Likes: 2,436
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: need help with a gasket?
Right: the 3-bolt crap is GUARANTEED FAIL. The worst thing about it is, ONE TIME of overtightening the bolts, and the whole thing is permanently destroyed, for all time; once that is done, it will NEVER EVER seal again, no matter what gaskets you use. The damage is PERMANENT IRREVERSIBLE and IRREPARABLE: it's impossible to replace the thing that warps, namely, the loose piece on the header side that spins. Worst design EVAH. Always has been, for as long as I've been dealing with it (over 40 yrs), and since long before that.
Cut that stoooopid worthless crap off and weld in what I linked you to. You won't believe how much better it is.
Cut that stoooopid worthless crap off and weld in what I linked you to. You won't believe how much better it is.
Joined: Mar 2000
Posts: 5,703
Likes: 132
From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: need help with a gasket?
Or get rid of all that worthless crap and get these
https://www.thirdgen.org/forums/atta...w-dcp_1340.jpg
https://www.thirdgen.org/forums/atta...w-dcp_1340.jpg
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Joined: Mar 2017
Posts: 4,255
Likes: 427
From: Portland, OR
Car: 86 Imponte Ruiner 450GT, 91 Formula
Engine: 350 Vortec, FIRST TPI, 325 RWHP
Transmission: 700R4 3000 stall.
Axle/Gears: 9 Bolt Torsen 3.70
Supreme Member




Joined: Oct 2004
Posts: 4,527
Likes: 240
From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
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