It should be a 5.7L 350
4.00"
355
chevy 350
It is a 350 Chevrolet motor. Also known as a 5.7 liter. There were many of them produced and the number you provided was stamped on engines made from 1987 to 1995.
350...383 is a stroker motor, a 350 with a 400 crank and cam which increases the stroke and adds .3 liters of displacement.
It's stamped into a tag on both sides of the motor. Just below cylinder head.
350 cid
7/16"
The 90 Corvette had a 350 c.i. engine
Normally,a Small Block 350
Th700-r4