change to serpentine belt

i am changing from v belts to serpentine belts on my early 302.my crank pulley has three bolts the crank pulley i got the other day has four bolts . any help

give www.summitracing.com a call. they have what you need. [img]/phpBB/images/smiles/icon_cool.gif[/img]

i took every thing i needed to change my 69 302 over to a serpentine belt from a 79 LTD.Some early 302's had a 4 bolt balencer.I saw a nid 70's pickup with a 4 bolt
[addsig]

Hey Woody
email me and i'll send you some pic's

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64 FAIRLANE 460/C5

<font size=-1>[ This Message was edited by: 64 TBOLT on 5/15/02 5:21am ]</font>

I could be wrong, but I think the 4 bolt balancers are 50oz. and the three bolt one ar 28oz. It matters which one you use. I don't remember the cut-off year for 50oz but methinks is was early '80's.

[addsig]

generally, '82-up are 50 oz, 68-82 are 28 oz. Some were 4 bolt 28oz some were 3 bolt 28 oz. I've got both the 3 and 4 bolt balancers, seems that the 4-bolt is the most common.

The balancers switched to 4 bolt from 3 bolt in 69.