525,600,700 header gaskets
01-31-2017 | 06:54 AM
#11
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Joined: May 2013
Posts: 1,754
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From: Long Island, NY
We have some MLS stainless steel gaskets made for the 525, 600,700. They are lifetime gaskets. You can not hurt them. If the header loosens, the stock gasket will push out. You then have to take the header off and remove the gasket and replace it. Mercury gets almost $60 per set. Our gaskets are a little more, but they will last forever. If the header comes loose and starts to leak exhaust gases, just tighten it back it. You WILL NOT blow the gasket out. They are $85 per set and worth every penny.
Eddie
Eddie
Plus, I bet it's pretty nice not to have to scrape the old gasket material off the heads every time too..
01-31-2017 | 09:40 AM
#12
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Joined: Jan 2004
Posts: 4,480
Likes: 43
From: Tennessee
That is the biggest pain of all of it. After they have been run for a while, the Merc gaskets get very hard and stick to the head with vengeance. You have to completely remove the header to be able to scrape (beat) the gasket off. No more of that with these gaskets.
01-31-2017 | 10:06 AM
#13
Thread Starter
Platinum Member
Joined: May 2012
Posts: 11,430
Likes: 3,957
From: Midwest & T-Rock
We have some MLS stainless steel gaskets made for the 525, 600,700. They are lifetime gaskets. You can not hurt them. If the header loosens, the stock gasket will push out. You then have to take the header off and remove the gasket and replace it. Mercury gets almost $60 per set. Our gaskets are a little more, but they will last forever. If the header comes loose and starts to leak exhaust gases, just tighten it back it. You WILL NOT blow the gasket out. They are $85 per set and worth every penny.
Eddie
Eddie
Thanks
01-31-2017 | 10:08 AM
#14
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Joined: Jul 2011
Posts: 9,594
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From: Ft. Worth TX
I can get the MLS gaskets as well and yes that's the way to go 4 sure. I TOTALLY AGREE with Mr. Young. My problem is I do not see that many 525 or 600's around in my area anymore like we use to. Currently I do not have any in stock but will soon as boating season seems to be starting early this year. Weather warmer and lake levels up / normal here.
