Has anyone used the mopar steel shim head gaskets on aluminum heads with good results?

I've heard of people doing it, also heard it's not a good idea.

I am using the .027 Cometics under my 440 source heads.

How have they been for leaks water or oil ?

The OEM guys invented the MLS gasket to fix problems they were having with blown head gaskets. Remember the Vega and other cars like that? That is why MLS gaskets exist.

I used them on my 505 stroker, No leaks. But union the freshen up I did notice the steel left a impression in the aluminum.

Currently using them on a fiends 440 w/ Eddy heads. He bought open chamber heads used. We used them to get the compression up to 10.0-1. Together 2 years, no leaks. Solid 11.30 car.
Doug

I used steel shim (Mr Gasket) with the Stealth heads to get .040 quench and have not had a problem

Judging from the last several years here, many have used the steel shims with aluminum heads. My warning would be that both surfaces need to be really flat.

R.

My 451 has been running fine for 11 years w Edelbrock heads and mopar steel shims and copper coat.

I've ran the Mr. Gasket P/N 1135 for 10 yrs (125-200 passes a yr depending on how well I did) with 440 source heads without an issue. Did freshen up the engine twice during that time. Was running just a tad over 10:1 compression. Never had an issue.

Have 028 steel shim on my motor with eddies

If i were to try it, i would use copper coat and do a retorque for sure. Someone reported marks left on the aluminum heads, so a rwtorque would be in need.

We used no copper coat and have not retorqued.
Doug