serpentine belt questions ????????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**jerry moss** · 11-20-2006, 11:48 PM

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 · 11-21-2006, 05:10 AM

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** · 11-21-2006, 06:30 AM

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 · 11-21-2006, 06:33 AM

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** · 11-21-2006, 10:06 AM

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

ghetto_superman · 11-21-2006, 03:34 PM

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 · 11-21-2006, 03:48 PM

Quote:

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** · 11-21-2006, 06:22 PM

Quote:

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.

11-20-2006, 11:48 PM	#1
jerry moss Born Psycho Join Date: Feb 2001 Location: brentwood,cal,usa Posts: 4,936	serpentine belt questions ????????? 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. __________________ jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA

11-21-2006, 05:10 AM	#2
Aarons72s Registered User Join Date: Apr 2006 Location: oklahoma Posts: 10,669	Re: serpentine belt questions ????????? 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.

11-21-2006, 06:30 AM	#3
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,216	Re: serpentine belt questions ????????? 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. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! Last edited by Palf70Step; 11-21-2006 at 06:31 AM.

11-21-2006, 06:33 AM	#4
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	Re: serpentine belt questions ????????? 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. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

11-21-2006, 10:06 AM	#5
jerry moss Born Psycho Join Date: Feb 2001 Location: brentwood,cal,usa Posts: 4,936	Re: serpentine belt questions ????????? thanks for all the replies, guys. i appreciate it. __________________ jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA

11-21-2006, 03:34 PM	#6
ghetto_superman Registered User Join Date: Sep 2006 Location: Omaha, NE Posts: 1,982	Re: serpentine belt questions ????????? not to hijack any threads, but since were on the subject.. anyone know of a good serpentine system for a caddy 500 block? __________________ -1947 3100 -1968 C10 -1970 K20



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