Hello from newbie

[71Z28RS]

Hello everyone from beautiful sunny canada

Have a 71 z28 , trying to narrow down the motor
Any help , much obliged


Numbers on front pass side

131137040 k11 27 ckl


Block casting right side
A 10
D N
2L6

Casting clock is on "fourth "mark


I have traced it to a 350 built in st Catherine's

Any more info

Thanks in advance