• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

headgaskets will not seat right

  • Thread starter Thread starter gt40p
  • Start date Start date Aug 18, 2009
G

gt40p

New Member
Aug 12, 2009
21
0
0
Aug 18, 2009
#1
  • Aug 18, 2009
  • #1
The head gasket is crushing more on the header side then the lifter vally side, caulsing it to blow the gaskets into the vally. Any suggestions would be great, thanks.
 
B

blown90

Member
Jun 28, 2003
35
1
6
New York
Aug 18, 2009
#2
  • Aug 18, 2009
  • #2
Do you have the dowels in place...sure you have the right gaskets...are you torquing the heads correctly?
 
G

gt40p

New Member
Aug 12, 2009
21
0
0
Aug 18, 2009
#3
  • Aug 18, 2009
  • #3
head gaskets are right and on right, arp head bolts, dowels in place, head surfaces and block all flat and clean. tourked the in three steps but not in the order that im soposto I went from the outter bolts to the inner insted of the other way. do you think that would be the caulse to blow the twice and only at the top of all cylinders?
 

BlownFiveLiter

have car, will race....wait, it doesn't run
15 Year Member
Nov 29, 1999
3,133
18
108
Chicagoland
Aug 18, 2009
#4
  • Aug 18, 2009
  • #4
Yes, I think that's exactly why the gasket failed. It is imperitave that you torque it in proper sequence. The way you did it caused the gaskets to bunch up toward the middle of the head and not allow the head to seal against the block.
 
G

gt40p

New Member
Aug 12, 2009
21
0
0
Aug 18, 2009
#5
  • Aug 18, 2009
  • #5
I put new gaskets on it two weeks ago, used coper tack and tourked them to manufacters spes. got 150 mil on it now havent gone over 3000 rpm havent had a problem yet. this is the third set of gaskets. Has any one seen that before on all cylinders?

I will send a pic if it will help.

Didnt know that that would have that much affect, you learn by your f ups
 
You must log in or register to reply here.

Similar threads

W
2016 Mustang GT fuel tank leak
  • Waynetk16
  • Oct 8, 2026
  • 2015 - 2023 (S550) Mustang -General/Talk
Replies
1
Views
125
2015 - 2023 (S550) Mustang -General/Talk Oct 9, 2026
gkomo
R
bbk shorty header to mid pipe gasket
  • randyyy
  • Sep 29, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
4
Views
496
1996 - 2004 SN95 Mustang -General/Talk- Sep 29, 2025
randyyy
R
Engine Catch Can or not?
  • R82148V
  • Mar 4, 2026
  • Fox 5.0 Mustang Tech
Replies
9
Views
479
Fox 5.0 Mustang Tech Mar 6, 2026
ctandc
C
Fox Rear Seat Belts - 87-89 vs 90-93 length
  • dan50
  • Aug 3, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
4
Views
233
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Aug 18, 2026
Mustang5L5
9
Forced Induction Prepping for supercharger on non-stock build
  • 91fox427
  • Nov 25, 2025
  • Fox 5.0 Mustang Tech
Replies
7
Views
586
Fox 5.0 Mustang Tech Jan 5, 2026
Qtrhrse23
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?