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Forum: Engine & Drivetrain (Including trans & rear axles)

10-16-2009, 09:03 PM

Replies: 101

Sticky: Head differences

Views: 59,113

Posted By 3150Mach1

Re: Head differences

You are the man Al.

Forum: Engine & Drivetrain (Including trans & rear axles)

10-13-2008, 07:23 PM

Replies: 101

Sticky: Head differences

Views: 59,113

Posted By 3150Mach1

Re: Head differences

I love this debate. I hope we can keep it constructive.

Forum: Engine & Drivetrain (Including trans & rear axles)

10-10-2008, 08:47 PM

Replies: 101

Sticky: Head differences

Views: 59,113

Posted By 3150Mach1

Re: Head differences

Bringing this to the top. Dans post is very informative and all new owners need to read it.

http://www.mach1registry.org/forums/showpost.php?p=946968&postcount=10

Forum: Engine & Drivetrain (Including trans & rear axles)

02-24-2008, 10:08 PM

Replies: 101

Sticky: Head differences

Views: 59,113

Posted By 3150Mach1

Re: Head differences

Well, Dan says its piston noise. If you are still under warrenty take it back and give them hell.

Forum: Engine & Drivetrain (Including trans & rear axles)

02-23-2008, 06:13 PM

Replies: 101

Sticky: Head differences

Views: 59,113

Posted By 3150Mach1

Re: Head differences

According to Dan it means the heads have replacement guides and are 4 thread.

Forum: Engine & Drivetrain (Including trans & rear axles)

02-23-2008, 12:16 PM

Replies: 101

Sticky: Head differences

Views: 59,113

Posted By 3150Mach1

Re: Head differences

So I just went downstairs and double checked and my 03 Mach heads have this same blue paint. So this means its a ford fixed head (different valve guides) and still 4 thread spark plug holes right.

Forum: Engine & Drivetrain (Including trans & rear axles)

02-07-2008, 05:28 PM

Replies: 101

Sticky: Head differences

Views: 59,113

Posted By 3150Mach1

Re: Head differences

So given all this then need some discussion concerning the cooling and the cooling mods that help flow coolant at #7 & #8. Is this still an issue? I did the LFP cooling mod so mute point for me.

Forum: Engine & Drivetrain (Including trans & rear axles)

02-06-2008, 05:30 AM

Replies: 101

Sticky: Head differences

Views: 59,113

Posted By 3150Mach1

Re: Head differences

Wow, Dans writeup should be a sticky for sure. I am educated now. I know I do not have the 9 thread head.

Forum: Engine & Drivetrain (Including trans & rear axles)

02-05-2008, 10:31 PM

Replies: 101

Sticky: Head differences

Views: 59,113

Posted By 3150Mach1

Re: Head differences

So our heads with F500 package. Does PP the heads help as well?

Forum: Engine & Drivetrain (Including trans & rear axles)

02-05-2008, 10:19 PM

Replies: 101

Sticky: Head differences

Views: 59,113

Posted By 3150Mach1

Re: Head differences

I saw the same thing over on stangnet. Just trying to get some info. My next big move might be PP heads with F500 valve train or Crower S2s.

Forum: Engine & Drivetrain (Including trans & rear axles)

02-05-2008, 10:00 PM

Replies: 101

Sticky: Head differences

Views: 59,113

Posted By 3150Mach1

Head differences

Can someone give me the short and sweet differences between:

03/04 Mach1 Heads

03/04 Cobra Heads

FR500 4.6L Heads

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