Timing Chain
The 4.3 liter V6 engine in a 1997 Chevy Blazer has a timing CHAIN
4.3 has a chain
When it go's out and the engine quits are when you can no longer set the timing with an engine scanner.
Timing belt
It does not have a timing belt, That engine has a timing chain and gears and they normally last the life of the engine.
94 has a Chain..
how to install time chain cover on a1997 blazer
how much play should a 4.3 Chevy engine timing chain have?
That would have a chain.
at what mileage do you change a 99 Chevy Tahoe timing chain.
It does not have a timing belt, It has a chain and gears.