This is a quick block ID
for junk yard hunting, etc. You must find the
date code at the back LH side of the block first. The letter is the
month, next 2 digits are the day and the last
digit is the year. Here are 2 examples:
A249 code "XE"
A = January - 24 is the 24th day - and 9 is 1969
The block is a 69 428.
Another example is:
K109 "WA"
K = October or November - 10th day - 9 = 1969
The block is a 70 455 4 bolt.
These motors usually have a large "70" at the rear of the block.
.jpg)
*Note - blocks with only 2 mounting
holes or pads (for the motor mounts) per side is from 1969 and older
blocks with 5 or 3 mounting holes or pads (for the motor mounts) per
side is from 1970 and newer blocks with 2 freeze plugs per side is 1966
and older blocks with 3 freeze plugs per side is 1967 and newer certain
blocks for 4 bbl carb usage have scallops in
the cylinders at the deck for unshrouding
the intake valves.
Most 1967 and earlier blocks place these scallops at approx
4
o'clock
and
8 o'clock
while 1968 and newer blocks
place the scallops at
3
o'clock
and
6
o'clock
. Early 2 bbl
blocks and most newer blocks did not have any scallops.
|
