Dec '69 Block 3963512
 

https://www.yenko.net/ubbthreads/pics...223_l_18_9.jpg
<span style="font-weight: bold">$1,850.00 + shipping from North Texas</span> smile
<span style="font-weight: bold">3963512 block L-18-9, 2 bolt - vatted, pressure tested, freeze plugs &amp; fresh bored .060 over
Includes 6223 crank fresh .010/.010 &amp; polished with new bearings
Includes NIB CompCam Hydraulic Extreme and 16 CompCam NIB Hyd Lifters
</span>

Block casting by year via chevellestufff.net . . .
V8 Engine Block Casting Month Codes
A - January D - April G - July J - October
B - February E - May H - August K - November
C - March F - June I - September L - December

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