Tom
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71 coupe
355,S/R torquer heads
Comp Cams 282S
TorquerII intake
Hooker headers,
Richmond 5speed

Tom's Neverending Projects

72&61: 355's Jetted w/oxygen sensors. 650DP, crank scraper, anti-hot soak system, 87 octane 9.65:1, 1 3/4 headers... 61:AFR 190, CC 270 4spd 4.11, anti-wheelhop clamps. 72:self-ported SRT's,xe262 1.6,TH400 recalibrated to shift at 5700 in D WOT. 3.08

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i have the same heads, they have a rough surface. i block sanded mine with 400 for 1/2 hour each. i used the non-rubber Fel-pro .015 with aluminum paint as a sealer.
i assumed the coated type did not need a sealer, but if they say it needs a sealer, they should tell you what to use.

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The instructions that came with the gasket says to use a sealer if heads or block have a rough suface. It just does not say which kind to use
This is where it starts to get confusing. I would agree that a smooth surface should be better for sealing, but I have read articles in the past saying that a slighly rougher surface will bite the gasket and prevent the gasket from moving due to thermal expansion in the heads and block. I like the aluminum paint idea. I bought some copper spray on sealer which should work the same way(I hope).
Has anyone had experience with these coated steel shim head gaskets?

[Modified by tsw71, 1:17 PM 9/8/2001]

the type of gasket that likes a rough surface is the composition type, not the shim type.

just block sand the heads, in an hour the question will be moot.
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ASE Certified 1984 in ENGINE PERFORMANCE, Engine Repair, and Electrical Systems...

72&61: 355's Jetted w/oxygen sensors. 650DP, crank scraper, anti-hot soak system, 87 octane 9.65:1, 1 3/4 headers... 61:AFR 190, CC 270 4spd 4.11, anti-wheelhop clamps. 72:self-ported SRT's,xe262 1.6,TH400 recalibrated to shift at 5700 in D WOT. 3.08

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i think that is their way of telling you that if u use it on a rough surface it will leak. By not telling u what sealer to use, they are off the hook.

the type of gasket that likes a rough surface is the composition type, not the shim type.

just block sand the heads, in an hour the question will be moot.

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Sounds good to me. I took your advice and picked up some sand paper while I was out earlier today. I'll go ahead and sand these things down a bit. Thanks for the help.

Tom

I used aluminum paint with my steel shim gaskets on my hipo small block.

Chuck
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http://blue69l88.homestead.com/l88.html

Thanks for the help everyone.
Tom

Chuck
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http://blue69l88.homestead.com/l88.html

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Do I get a ride when its done? Do I need to wear a watch?

Chuck

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Of course you can go for a ride. The watch may come in handy too.

Here are the top 4 uses for the watch:

1 Check new 0-60 time

2 Check how long it takes my engine to reach 5500-6000 rpm. (anything under 5 minutes should be considered an improvment)

3 Keep track of how long it takes me to pick up various parts off of Hwy 85(rods, parts of crankshaft, main caps,ect.......)

4 Verify if tow truck gets there when promised

P.S. Remind me to tell Steve(Pacin Ca) why I won't be getting his new heads and cam swapped in one day. For some reason, it seems to take me three times longer than before to do stuff like this. I spent over 3 hours installing and degreeing new cam, over an hour putting on timing cover, 1 hour sanding the heads, and 1 hour installing heads. Oh yeah, I almost forgot the 2 hours on the forum durring mandatory break time

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hey tsw71 howd you make out with it you get it done yet i use the felpro 1094 .015 gaskets in the circle track motors.. i wet sad the block and heads with 600 and then 1500 use copper spray gasket on head surface and the block surface then assemble retorque once and they seal right up ..we have about 800 laps on the motors and still no leaks.

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I probably won't get it running until next weekend. I am still waiting on the radiator seal kit, so I can't put the rad in yet.

It sounds like you ended up with one heck of a good sealing surface with all of that sanding. I can assure you that my heads are far from being that smooth, but hopefully good enough to work. Many years ago when I was young, I threw a set of 63cc fuelies(462's) on the then stock shortblock. I did this late one night and the only auto store still open had steel shim gaskets only. These had no coating of anykind and I didn't know that I needed to coat them. They worked great for several years and were still good when I finally rebuilt the bottom end. The small chamber heads with the steel gaskets made a very noticable difference in power when compared to the stock castings that came on the car from the factory. Compression is a wonderful thing

When I get this thing fired up and on the road, I will post an update on the 282S cam, head gaskets, ect....

Tom