XL’s up to the end of January1964 had both 144 and 170 cubic inch engines. The 170 engines came in High Compression version while the 144 came in both High and Low Compression versions.
They were equipped with 3 speed Manual Transmissions that had no synchro in 1st gear, or the 2 speed Automatic Transmissions.
Each Engine and Transmission code had it’s own prefix stamped on the passenger side shocker tower. These codes are listed below.
ZSH = High Compression 144 cu in, Manual Transmission
ZAH = High Compression 144 cu in, Automatic Transmission
QSH = High Compression 170 cu in, Manual Transmission
QAH = High Compression 170 cu in, Automatic Transmission
XL Model ID Plates changed from the way the codes were stamped on the XK model
XL Falcons were made in four production plants listed below.
Month Codes for 1962 to the end of 1964 are listed below
A - Jan
B - Feb
C - March
D - April
E - May
F - June
G - July
H - August
I - September
O - October
X - November
Y - December
B - 1962
C - 1963
D - 1964
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