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390 keeps blowing exhust gaskets

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Old Feb 10, 2002 | 07:14 PM
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LonnieD's Avatar
LonnieD
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From: Covington usa
390 keeps blowing exhust gaskets

My son-in-law dropped a new 360 in my 69 F250... it keeps blowing the exhust gaskets... anyone have this problem?
 
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Old Feb 10, 2002 | 09:20 PM
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Mil1ion
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390 keeps blowing exhust gaskets

Are the pipes clear all the way to the back?

Good flow out the back?


Dennis



Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"


78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
 
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Old Feb 11, 2002 | 08:56 AM
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From: SD
Post 390 keeps blowing exhust gaskets

[font color=red size=2]Is it always blowing out in the same spot? If it is then there is a problem.

If it's blowing between the manifold and the head, then the manifold could be warped, pull it off and put a straight edge over it. If it's warped it will have to be machined smooth.

If it's the donut gasket, then the pipe could be cocked or one of the studs broken off.

If you have headers then you might need better quality gaskets, this is a common problem with headers.

Marty
 
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Old Feb 11, 2002 | 09:47 AM
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From: Sun River St. George
390 keeps blowing exhust gaskets

 
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