Garage so far
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I agree with Martin. The stock head gasket and head bolts are good up until about 24 psi at which point the head starts to lift a little and the head gasket can blow. Of course this is running 24 psi with detonation totally under control! That means race gas and/or water injection.
If you do install that metal head gasket make sure to use brand new head bolts. The OEM head bolts are known as torque to yield or stretch bolts. Once they are used they are *very* likely to be stretched too much and they will not provide the proper clamping force on the head the second time they are used.
Also when using a metal head gasket is is very important to have an extremely clean perfect sealing surface on the deck surface of the block and on the head. Have a machine shop measure the head surface for warpage and check the deck surface with a precision straight edge for warpage as well.
Good luck man
If you do install that metal head gasket make sure to use brand new head bolts. The OEM head bolts are known as torque to yield or stretch bolts. Once they are used they are *very* likely to be stretched too much and they will not provide the proper clamping force on the head the second time they are used.
Also when using a metal head gasket is is very important to have an extremely clean perfect sealing surface on the deck surface of the block and on the head. Have a machine shop measure the head surface for warpage and check the deck surface with a precision straight edge for warpage as well.
Good luck man
Thread Starter
Eye Heart Nissan
Joined: Mar 2002
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Thanks for the info I already got the part number for the ARP studs and was ready to order them. Im kinda leaning against it if I can get my $230 back...
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Tampa Bay Lightning - 2004 Stanley Cup Champions
Tampa Bay Lightning - 2004 Stanley Cup Champions
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Joined: Jun 2000
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Originally posted by "Someone"
Originally posted by BumpinPSI
Thanks for the info
Originally posted by BumpinPSI
Thanks for the info
Dont blame ya for asking around though just taking this opportunity to harass ya
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92' Nissan 240sx
02' Honda VFR Interceptor
08' Tundra
92' Nissan 240sx
02' Honda VFR Interceptor
08' Tundra
Get the fuck off my lawn
Joined: Oct 1983
Posts: 11,091
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is that the only con of having an aftermarket metal HG? the part about it not blowing and u not being able to know if something inside the motor is going wrong?
just wondering really.
just wondering really.
