Standard bore 1973 340 with 1973 340 heads (1.88" intakes, NO smog tube holes). Can include a 1969 340 intake. This is an UNSTAMPED motor. NO VIN, NO assembly date or info. Casting date 2/9/73.
This engine was installed in my 1968 GTS convertible some time around 1980 (we bought the car in early 1983). It had a low oil pressure problem at idle in 1989 so I pulled it to rebuild. I had the bores measured at that time and they were worn just barely enough to need to be bored. A couple of years...
1973 340 long block
