LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Felpro gasket on aftermarket headers

Thread Tools
 
Search this Thread
 
Old 11-01-2012, 08:06 PM
  #1  
TECH Addict
Thread Starter
iTrader: (4)
 
trilkb's Avatar
 
Join Date: Jul 2005
Posts: 2,106
Received 77 Likes on 56 Posts

Default Felpro gasket on aftermarket headers

Will the ms 95585 gasket work on jethot long tube headers? Ive searched and am getting mixed results. Some people said the "1406" gasket works and the ms 95585 doesnt...some say they both work...you get the picture.

Also can you double up header/exhaust gaskets? Not that I am going to do it, but the guy at the parts store said you could and It kind of threw me.
Old 11-01-2012, 09:06 PM
  #2  
TECH Resident
iTrader: (8)
 
02v8ta's Avatar
 
Join Date: Jun 2008
Location: south jersey
Posts: 958
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by trilkb
Not that I am going to do it, but the guy at the parts store said you could and It kind of threw me.

I would have just left haha... No don't do that, and go tell him that.


That's what I'm putting on for my header install soon. You should be fine.

Last edited by 02v8ta; 11-01-2012 at 09:16 PM.
Old 11-01-2012, 09:13 PM
  #3  
TECH Apprentice
iTrader: (1)
 
Blue85350's Avatar
 
Join Date: Mar 2006
Location: dfw tx
Posts: 309
Likes: 0
Received 1 Like on 1 Post

Default

running 1406's on mine, haven't had a problem yet.
Old 11-01-2012, 09:22 PM
  #4  
8 Second Club
iTrader: (2)
 
fex77k's Avatar
 
Join Date: Sep 2006
Location: AR
Posts: 1,668
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by trilkb
Will the ms 95585 gasket work on jethot long tube headers? Ive searched and am getting mixed results. Some people said the "1406" gasket works and the ms 95585 doesnt...some say they both work...you get the picture.

Also can you double up header/exhaust gaskets? Not that I am going to do it, but the guy at the parts store said you could and It kind of threw me.
The only ones I doubled have metal on one side(they have three individual gaskets per side), you put them on so the metal is facing the head and the exhaust. They won't stick if you have to remove the header. I haven't had much luck with most gaskets, with mr gasket being the absolute worst.
Old 11-02-2012, 04:47 AM
  #5  
TECH Senior Member
iTrader: (2)
 
RamAir95TA's Avatar
 
Join Date: May 2005
Location: South Jersey
Posts: 9,467
Likes: 0
Received 6 Likes on 6 Posts

Default

IMO doubling up gaskets increases the chance of a leak because now you've doubled the surface area of the sealing faces (by putting two gaskets together the middle "seam" is a potential leak point).

Not to mention you've reduced the thread engagement of the header bolts (unless you use a slightly longer bolt).
Old 11-02-2012, 06:07 AM
  #6  
TECH Fanatic
iTrader: (1)
 
bowtienut's Avatar
 
Join Date: Mar 2007
Location: Bright, IN
Posts: 1,685
Likes: 0
Received 4 Likes on 4 Posts

Default

From my experience, the thicker the gasket, the sooner it will fail and the bigger the leak.
I've done best using the stock stamped steel shims that are OEM with the manifolds. If your surfaces aren't flat enough to seal with them, or if your header flanges are too thin and distort, then you'll have problems no matter what gasket you use.
Old 11-02-2012, 08:38 AM
  #7  
10 Second Club
iTrader: (7)
 
Mystery Bird's Avatar
 
Join Date: Jun 2011
Location: Massachusetts
Posts: 1,043
Received 1 Like on 1 Post

Default

1406 on my Hookers, same as Jethots.
Old 11-02-2012, 09:26 AM
  #8  
8 Second Club
iTrader: (2)
 
fex77k's Avatar
 
Join Date: Sep 2006
Location: AR
Posts: 1,668
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by RamAir95TA
IMO doubling up gaskets increases the chance of a leak because now you've doubled the surface area of the sealing faces (by putting two gaskets together the middle "seam" is a potential leak point).

Not to mention you've reduced the thread engagement of the header bolts (unless you use a slightly longer bolt).
I use a longer arp bolt now. Since i built my own headers i run a 1 piece gasket.
Old 11-03-2012, 09:58 PM
  #9  
TECH Addict
Thread Starter
iTrader: (4)
 
trilkb's Avatar
 
Join Date: Jul 2005
Posts: 2,106
Received 77 Likes on 56 Posts

Default

Well I had already bought the MS95585's which is why I was trying to get info on them over the 1406's.

Might try to throw it on tomorrow, might say f-it.



Quick Reply: Felpro gasket on aftermarket headers



All times are GMT -5. The time now is 07:16 PM.