Originally Posted by dvw
Just use the old style steel shim gaskets you'll be good to go. From Summit. .020" thick

MR. GASKET
MR. GASKET STEEL SHIM HEAD GASKET
Fits 1959-1978 Chrysler 361-440 B/RB Big Block. 4.400 Inch Bore, .020 Inch Compressed Thickness

Part #
1135G
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$28.41

Doug

i have used the stock style steel shim head gaskets on iron block and heads with the stock machine work with no problems using 2 or 3 light coats of Copper Coat on both sides of those gaskets up
I've also used aluminum paint when I was out of copper coat and couldn't go buy another can of it do to the parts stores being close at night and I needed whistling, I wanted to, to go racing the next morning up shruggy

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)