[BogiesAnnex1]

Dipstick on the drivers side tell you this is pre 1979/80 engine. 350’s were built starting in 1967.

The casting number leads to both the bore diameter and main bearing diameters. There is a cross over period in the late 1960’s where casting could build a medium journal engine of either 302, 327 or 350 all bring 4 inch bore castings. Prior to the 350 there were casting numbers that built 4 inch bore engines with small main journals of 302 and 327.

Bogie

 

[BogiesAnnex1]

IT suffix code says it is a 350 built in 1969 configured with a 4bbl for full size commercial or government passenger vehicle built to a contract. That would have the dipstick on the drivers side, North America. Tonawanda, New York would be where the engine was built. The L code is part of the vehicle VIN code telling you this engine was mated to a vehicle at the Van Nuys, California assembly plant.

The head casting number will give an idea of compression ratio. I’d expect this with a 4bbl would be a 290-300 horse with a cam timing in the range of 195-205 at .050 with a lift of about .430 at the valve, in other words an average 350. These were built with 2bbls rated at. 240-250 horse or with a 4bbl rated at 290-300 the cam and compression is the same between them the power floated a little year by year as Chevy was dinking with compression ratios kind of testing the waters for the soon to arrive SMOG era that came to California earlier than elsewhere.

Bogie