[GTOGEORGE]

Originally Posted by Mark G

You need to be rich to be competitive with a Pontiac...

You need to have money going that quick with any engine/car, trust me it ain’t cheap!


GTO George

[Hooter]

Originally Posted by Jeff Kinsler

I put the inserts in my E-heads beginning of last year and went from having some leakage start between the center cylinder in 10 to 15 passes to now going 50 to 60 passes without changing head gaskets. So I can verify that the inserts definitely work.

Also I will be running a set of the new tigers for next year and I dont think there is going to be a problem. They have water going between the two exhaust valves and I will have the inserts put in.

EHTTFMF

So, the new Tigers have water in there and the old ones did not?

[scott70]

Originally Posted by John Langer

Well it use to be 3-5 passes

Youve got to be a committed racer to put in that much time and money. I guess I'm lazy because I wouldnt want to invest that much time and money. It looks like those guys on streetoutlaws race on the weekends and work on their cars all week..I couldnt do it. These too many other things to do. I used to pull the motor and have it freshened every 3 ish years which I thought was a pain,,,lol. If I Had to pull the heads off every 10 runs Id say the hell with it. The slower ,low maintenance stuff is fine for me.Im sure you done it so much you could pull the heads and have them back on and valves set in a hour.

[p4msi1]

Originally Posted by Glenn Sedig

The heat generated by 2 exhaust valves side by side in the center of the head softens the alum enough to cause the web between the center cylinders to deform down .002 to .004. The ridges in the head gasket also indent into the alum web by several thousands of an inch. The other webs with 2 intake valves side by side show no distortion or effects from heat. After the center web is pushed down, the head gasket has less clamping pressure in that area, which slows the disipation of heat causing the head gasket to burn and allows combustion pressure to pass between the cylinders.

All of the heads I have put inserts into regardless of the brand have had this same problem.

On my engine with over 15:1 compression I have had no problems. When tearing it down, the area of the gasket where the insert is, shows no sign of heat or leakage. The insert is pulling the heat away from the area so that the insert in the web does not get hot enough to deform. The copper alloy insert will also take much more heat that is generated in the web area before it gets soft enough to deform.

Jim is right, the problem is too much heat. So the answer is to get rid of some of the heat or find something that will hold up to the heat. Adding water holes will get rid of some off the heat and the copper inserts will hold up to the heat.

One or both of the fixes can be a solution. With that said we will still have problems in the center web area on high hp heads because of the heat and the thickness of the web.

Glen, Give me a call 540-967-4836 or 703-615-5027

Steve

[Hooter]

Glenn - what's the going rate on a set of e heads to have this done? My motors coming out this winter. May have this upgrade done on them.

[PontiacMatt72]

X2... may be interested in the future myself

Originally Posted by Hooter

Glenn - what's the going rate on a set of e heads to have this done? My motors coming out this winter. May have this upgrade done on them.

[slowbird]

It would be nice if AP would state what the difference is with the new casting vs the old casting to help fix the heat issue there

[Jeff Kinsler]

Originally Posted by Hooter

So, the new Tigers have water in there and the old ones did not?

I'm not a tiger expert but I think the original tigers did not have water between the center cylinders and new ones do.

Langer or Dwight can chime in.

[jimmy daniel]

That’s why some switched over to the Shafiroff 1000 hp motors for 15kthat you can run forever.

[LiL Jack]

Originally Posted by jimmy daniel

That’s why some switched over to the Shafiroff 1000 hp motors for 15kthat you can run forever.

I would rather put Head gaskets on a Pontiac every 10-15 passes then put a Chevy in my Pontiac.

[John Langer]

Originally Posted by LiL Jack

I would rather put Head gaskets on a Pontiac every 10-15 passes then put a Chevy in my Pontiac.

How would you even know whats under the hood? Don't you fly in professional tuners???

[jimmy daniel]

I did a BBC 1030 hp in my 63 Tempest for two years in Super Street 10.90@158 but sold it and went back to the 467. Having Butler build me an aluminum 535 this winter so I’ll have another go at it.

[Glenn Sedig]

Originally Posted by Hooter

Glenn - what's the going rate on a set of e heads to have this done? My motors coming out this winter. May have this upgrade done on them.

I get $675 to make the inserts, machine the heads, and install them. Tony at BES will also machine your heads and install the inserts. You will need to check with Tony for price.

[LPI]

Do you mean this test?

Softened chambers, insert washers, clamp load, coated pistons, camshaft, headers and water.

Oh, if you follow the manufacturer's instructions...then go buy a Chevy

[Dragncar]

Originally Posted by LPI

Do you mean this test?

Softened chambers, insert washers, clamp load, coated pistons, camshaft, headers and water.

Oh, if you follow the manufacturer's instructions...then go buy a Chevy

Interesting photos. It looks like the top pic is darker around some of the bolt holes. Is it just the pic or is there a actual difference. First time I have seen this stuff BTW.
Thanks.

[Mark G]

Originally Posted by Glenn Sedig

I get $675 to make the inserts, machine the heads, and install them. Tony at BES will also machine your heads and install the inserts. You will need to check with Tony for price.

Could you do my E-heads this winter

[Mark G]

Originally Posted by GTOGEORGE

You need to have money going that quick with any engine/car, trust me it ain’t cheap!


GTO George

This is not my first rodeo George ..

[PAUL K]

Originally Posted by LPI

Do you mean this test?

Softened chambers, insert washers, clamp load, coated pistons, camshaft, headers and water.

Oh, if you follow the manufacturer's instructions...then go buy a Chevy

Nice work LPI thanks for sharing.

[p4msi1]

Mark is cool.........

[jimmy daniel]

Does the ram air v head solve the head gasket problem since the exhaust are separated ?