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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YOUR PRICE
$28.41

Doug

Last edited by dvw; 04/13/22 08:21 PM.