is this a vortec engine 4.3 liter casting number on Block 10066061 - 4.3lg
1939
depends if you have a scat block or not NEW ANSWER: There is 2 in the back of the engine block. There is 1 on each side of the timing cover on the front of the engine. There is 2 on each side of the engine block just below the heads. Sometimes there are 3 on the sides of the engine block. Depends on the year.
1967
Google the vin that's on the block
That block was used from 77-79.
That block was used from 1980-1985.
what year is a 350 block with the stamp GM8970010
On the sides of engine block.
WHAT YEAR WAS THIS ENGINE BUILT
that all depends on the year of the engine.
Need to KNOW the YEAR of the engine. And what it is in.