BBC pulleys- need a quick lesson

af2 · Posted: Fri Aug 20, 2010 12:26 am Post subject:

If the center is tight I would drill the holes and not worry about being perfect.

10sec.et · Posted: Fri Aug 20, 2010 1:06 am Post subject:

clay · Posted: Fri Aug 20, 2010 10:04 pm Post subject:

You know, really for what you pay for an ATI balancer, I think it should fit the pulleys you have and shouldn't require you to dig up other stuff. I agree with everybody else on the hole fitment. I would prefer to file them into the necessary slot instead of drill them larger, but either will work fine using the washers you mentioned. I'm glad people do build stuff that's not mainstream - it makes it intersting. Thanks to you and all the people that choose to do it. Clay

Big Dave · Posted: Fri Aug 20, 2010 10:12 pm Post subject:

Bolts on a Chevy balancer are supposed to be fine thread (3/8-24) not coarse thread. If you are going to redrill the holes turn the balancer to put the new hole between the other two. Do not try and redrill the other holes.

Big Dave

MufflerBearings69 · Posted: Fri Aug 20, 2010 11:12 pm Post subject:

Yeah, I cant sort out what their entire "BBC Pulley" note is about. I think its a scapegoat for when nothing fits! Laughing

A slight amount of filing on the pulley holes will let the bolts go in, so I am going that route. File to fit, blast, powdercoat, and move forward...

In another 2 decades I might get to drive this thing.

William Jones · Posted: Fri Aug 20, 2010 11:27 pm Post subject:

I had this same issue I used the old 3 bolt sbf march pulley set and openend the holes alittle I still have that pulley if you want it I don't run a alternator anymore its a single groove pulley. It was in the fire but it only damaged the coating I bead blasted it so it will need to be painted or you could leave it silver. Ihad to use the Morroso SBF Alt bracket it is very versitile. LMK

Bam

af2 · Posted: Fri Aug 20, 2010 11:58 pm Post subject:

10sec.et · Posted: Sat Aug 21, 2010 1:45 am Post subject:

the ATI balancer for the Olds has a Chevy bolt pattern. i think the Chevy pattern is their "failsafe" when its an oddball. dont screw with the balancer. if you have to, make the pulleys fit the balancer.

MufflerBearings69 · Posted: Sat Aug 21, 2010 12:40 pm Post subject:

Oh no definitely modifying the pulleys- Balancer is 400 bucks, I can get another crank pulley for 5 bucks. lol

clay · Posted: Sat Aug 21, 2010 1:27 pm Post subject:

MufflerBearings69 · Posted: Sat Aug 21, 2010 1:35 pm Post subject:

Fortunately for me the seal rides on a spacer that is behind the damper so there is no chance for them to mess that up...

I agree 100% they should make things right the first time but I came to the conclusion a while back that I will either deal with it, or have to find a new hobby. Sucks, but its how it goes...

clay · Posted: Sat Aug 21, 2010 8:50 pm Post subject:

10sec.et · Posted: Sun Aug 22, 2010 3:47 am Post subject:

now days, unless youre buying your parts from the dealer for your brand new car/truck, its pretty much a bend/grind to fit and paint to match kind of deal. nothing fits anymore. it cracks me up how the young guys at work are surprised when the "kit" doesnt even come close to fitting. i tell them "a KIT just means that the parts arrive on the same UPS delivery" Laughing

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William Jones · Posted: Mon Aug 23, 2010 9:41 pm Post subject:

Mufflerbearings I have the pulley if you want it just send me your address your not that far from me. I will ship it over to you.

The man is always trying to get us to put more and more Chevy parts on our Fords LOL.

Bam

SMOKEmUP · Posted: Tue Aug 24, 2010 11:45 am Post subject: