Need to know the year and make- They are all different.
There should be a sticker under the hood that will tell you.
You can not use a timing light to set the timing on that year engine. The timing is computer controlled and it requires a engine scanner to set the timing.
5700
Standing in front, looking at the engine, clockwise.
advertised horsepower is...........165HP @ 3800 RPMs.
250 ci,305 ci, 350 ci, 350 ci (Diesel), 379 ci (Diesel) (1982).
The small ones have 153 teeth, the large ones are 168.
Stop by the dump and have it weighed...Tombo
no
NO.
Chevy blazer '78
the biggest engine i can recall was the 454 ci and that was when it was right off of the assembly line it could also have a 350 Chevy
8 degrees before top center