T tonylittell New Member Sep 1, 2004 10 0 1 Jan 30, 2011 #1 Jan 30, 2011 #1 i have a 92 notch with what is supposed to be an aluminum headed 347. i found a casting number/pard number on the face of the head on the driver side that has MM 5879 stamped into it..... anyone have a clue as to what kind of heads these are?
i have a 92 notch with what is supposed to be an aluminum headed 347. i found a casting number/pard number on the face of the head on the driver side that has MM 5879 stamped into it..... anyone have a clue as to what kind of heads these are?
