I think I may have the wrong flex plate on this engine. I can't get the starter to fit. Also the engine number does not match the car number, so I am curious about the engine. What year? or what ever. also what flex plate should it have? Thanks. Curt

The T is the plant wjhere the engine was made. The 1030 is the day and date. The GF is the engine transmission combination. Now all you need to know for the parts application is the year.
The only GF I can find for a 283 is a 1957 250 HP Turboglide fuel injection engine. There were perhaps less than a hundres of those engines made,
The 1957 engine would not have the drilled and tapped bosses on the side of the block for the motor mounts like the 1958 and up have.
Is the flywheel for a stick or automatic? Actually there is one or two flywheels that will fit most 1955-1962 stick engines. The difference pertains to the size of the pressureplate/disc.
The flywheel for a Power Glide fits from 1955-1962 with cast iron PG.

Gene,

I also found GF to be a '65 283, 195HP, PG Engine on a couple of different online sites.

Bill

The MSA-1 Chevy Small Block Suffix Codes book also lists a 283 with the GF Suffix code for a '66 Impala 283 195 hp also with a pg trans.

Thanks for the comments guys. More information on the engine, when I put it in my 57 Belair at one time, I had to drill and tap a hole for one of the front motor mounts. It had side motor mounts. The transmission that was with the 64 SS was a power glide floor shifted from the center consol. Where is the plant that the T in the serial number represents. Curt

T is Tonawanda, NY