Ford cast Iron heads casting #s
I have a set of cylinder heads with these #s;
bottom of head by push rod tubes D0oE C(casting #s?)
on top inside valve cover(date code?)1F23
D=70s,right?0=1970,right?How come the date code is for
1971?Are these the small 65cc chamber heads,or the 69cc chamber heads? 
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89'LX 5.oh.BBK shortys,no cats
Flow masters w/Dumps,Crane Cam(Top secert)
MSD 6AL,Blaster coil,Motor sport 9mm
wires,under drive pulleys,no smog
timming @ 16 deg,K&N,70 mm maf,
Pro5.0shifter,Home made frame con.
south side lift bars,3.73 bald @#! tires(2 on rear!)Sony C-D and Rockford fasgate rear,w/sony explode
5 1/2 in front.
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