serpentine belt questions ?????????

[jerry moss]

to start with, is a serp belt set up off a 4.3 V-6 the same set up as a 5.0/5.7 V-8. i picked up the full front bracket--the stamped steel one that wraps completely around the front of the motor, crank pulley, p-s pump with pulley and water pump with pulley. i believe it all came off an astro van.
secondly, if it is the same as a V-8, what would be a fair price to ask for all of it ? if it isn't the same and/or has no value, we have a big scrap metal bin at work.

[Aarons72s]

Im not sure if they are completely identical but I do know the 4.3 will bolt up to the 5.0 and 5.7. I think there are quite a few using this system so it does have value. How much? I am unsure. But here is you a bump.

[Palf70Step]

There maybe some slight differences in the crank pulley depending on the year and vehicle they came from I don't know the exact models, but some will have a deeper (thicker) lower pulley because the crank damper differences. The upper support braces between the serp setup and the intake manifold will also vary between the V8 and V6 models.

[krue]

What you have is the same as my bro's astro van. It should bolt up to a 350 but personally the aluminum brackets are more desirable.

[jerry moss]

thanks for all the replies, guys. i appreciate it.

[ghetto_superman]

not to hijack any threads, but since were on the subject.. anyone know of a good serpentine system for a caddy 500 block?

[1933 Gasser]

Originally Posted by jerry moss

to start with, is a serp belt set up off a 4.3 V-6 the same set up as a 5.0/5.7 V-8. i picked up the full front bracket--the stamped steel one that wraps completely around the front of the motor, crank pulley, p-s pump with pulley and water pump with pulley. i believe it all came off an astro van.
secondly, if it is the same as a V-8, what would be a fair price to ask for all of it ? if it isn't the same and/or has no value, we have a big scrap metal bin at work.

I'm not sure and maybe somebody else can verify that you may need a reverse direction water pump with the serpentine system. It seems I ran into that on an '88 SUburban I used to have.

[Palf70Step]

Originally Posted by 1933 Gasser

I'm not sure and maybe somebody else can verify that you may need a reverse direction water pump with the serpentine system. It seems I ran into that on an '88 SUburban I used to have.

Yes, absolutely you will need to change water pumps. You may also need a fitting on the radiator for the heater line if the replacement water pump does not have a place to hook up the heater coolant line.