what do i have here

View attachment 1715611443 View attachment 1715611444



i got this 340 years ago probably 25 or so its casting date is 8 18 68 and the timing tab is on the opposite side . i just noticed it does not have a harmonic balancer as you can see . is this how the early 340's were made ? it also has no vin stamped on it .


Heres a pic of a marine 318. Notice the pully looks the same as yours but there seems to be a harmonic balancer behind it.



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