ON a 88 or 89 which digit in the vin is the engine code?

It should be the eight digit Krue

F 305 V8 4BBL (5.0L) Chevrolet LF3
G 305 V8 2BBL (5.0L) Chevrolet LG9
H 305 V8 4BBL (5.0L) Chevrolet LE9
L 350 V8 4BBL (5.7L) Chevrolet LS9
M 350 V8 4BBL (5.7L) Chevrolet LT9
P 350 V8 2BBL (5.7L) Chevrolet LF5
W 454 V8 4BBL (7.4L) Chevrolet LE8
T 292 L6 1BBL (4.8L) Chevrolet L25
Z 350 V8 Diesel (5.7L) Oldsmobile LF9


For these years, the new "world" style VIN consisted of 17 characters. The decoding is as follows... The first number indicated nation of origin: 1=U.S.A. 2=Canada. The next symbol is a letter: G for General Motors. The third symbol is a letter: C for truck. The fourth symbol is a letter: E for a GVWR of 6001-7000 lbs. and it also designates hydraulic brakes. The fifth symbol is a letter: K for Conventional cab, 4x4. The sixth symbol is a number: 1 for 1/2 ton. The seventh symbol is a number: 8 for Blazer. The eighth symbol is a letter identifying engine type and make

Yep, eighth.