540 vette

I am putting a 502 into my 72 and need pulleys for it. I picked up the original alt and power steering brackets for it and just need pulleys. There is no a/c. Which pulleys to use and are there aftermarket ones I can use.

jnb5101

Check any of the supplier's web sites or catalogs, all have diagrams and part numbers. it is a confusing set-up!

540 vette

Thats why I asked the question. I want to see what others have used.

jnb5101

I used the set-up from corvette america on one car. The only problem was the bracket that attaches to the exhaust manifold stud and to the front of the head-it wasn't bent quite enough at the stud, so I had to tweak it.

540 vette

There are different pulleys listed. I need to know which ones. I also am using the power steering pump from the 350 that was in the car. Will that pulley work with the BB pulleys.

BLACK SHARK

I am doing the same, taking a small block out and putting in a big block.
468 inches, 11 to 1 compression

530planeman

I had to change all mine when I did the swap in my 70.Couple of them spendy
Wes

540 vette

I know they are pricey. That is why I posted here to find out if there after market ones or the factory and which ones to get.

dmaxx3500

''march'' makes some cool aftermarket serp pulleys and brackets

Nowhere Man

Chevy figured this out for you in 70 with the 454 option. Paragon makes all the stuff you need in house from GM tooling. take the guess work out of it all

540 vette

You didn't answer the question. I know chevy figured this out and I know about Paragon and that they take all the guess work out of it. I posted this thread because I went to all the catalogues and saw the pulleys.

I wanted to see what other people have used.

Lobzila

Go with the March Serpentine set up. Works better that original and looks good as well. I will take a better shot for you now that the new electric fan and new radiator are in the car.

SteveG75

Another vote for the March setup.
http://marchperformance.com/chevy/ch...nt-deluxe.html

I have the high water flow pulleys and GM Type 2 remote reservoir PS pump. Water pump is an Edelbrock aluminum short water pump and alternator is a 140 amp 12SI (electric fans, fuel pump, EFI). Just had to machine the alternator pulley a little for nut clearance since the 12SI shaft was a little too short.

69Vett

my 69 BB with correct pulleys, and brackets.
You need the 3 groove waterpump for A/C.

Lobzila

Better shot of the March system I put on my big block. As I am far from stock, I wanted a different look for my car. Using the Saginaw PS Pump, I hard mounted it to the mounting bracket and adjust tension on the bar connecting the alternator to the block. At first I was concerned the PS pump would slip, but no issues yet. Good luck.

540 vette

No a/c, what do you use.

jnb5101

Without A/C, use the two groove pulley-one for the helper belt and one for the P/S belt. The problem is the size of the helper belt. Without a tensioner you have to try different belt sizes and widths to obtain the best fit. I had to loosen the W/P pulley so that it hung down, slipped the belt on the pulley and then tighten the W/P bolts to get the proper size and tension. I can't remember what belt that I used, but I do remember each of my two BBCs had different sizes- one had GM pulleys and the other aftermarket.

69Vett

compressor not installed, 3 groove pulley Installed in preparation for compressor belt..
the 3 groove pulley is more expensive too.

540 vette

I was looking at this setup.

http://www.cvfracing.com/Chevy-Big-B...stem-c-swp.htm

bazza77

I was looking at that same set up to put on my original 427 block ,so I emailed the guys . Answer came back "I'm sure it will fit , but if not you can just return it " Not real practical from where I am !

Anyway just the other day I got hold of their catalogue and on nearly every page it says "NOT for Corvette" .