problem with the belts and pullies on my swapped in 351c

When you call around for pulleys, most companies are going to ask what your offset measurement is.

If you remove your crank pulley and water pump pulley, and take a straight edge (metal ruler on its side) and sit it against the waterpump flange (where the pulley would bolt up, then measure the distance from that edge to the front mounting face of the balancer with a measuring tape. This is your offset measurement.
Pulley companies:
March Performance
Billet specialties
Zoops
Jones Racing Products
Hotrodlane.com
If you find something thats close , but a little off, pulleys can be shimmed so that the v-grooves are centered with each other.
Personally, I wouldnt run underdrive pulleys on a street car. for best cooling rusults you want to overdrive the water pump on a street car. That means the waterpump pulley is smaller dia. than the crank pulley.

I am running just an alternator on my Cleveland.I got my pullies off a Maverick at the wreckers without power steering.

The only shorter pulley I have is from a 390 and it's diameter is 1/8" larger and the offset is 1/2" shorter than the three Cleveland pulleys I have.

does your crank pulley hyave 2 grooves?

nevermind the alternator for now.

if you bolt up the waterpump pulley you have now, will it's groove line up with any of the three of the crank pulley?

hmmm?

I bought a 2-groove wp pulley from CJ Pony Parts for a 351C without power steering. It was part number CAA7126. They get $50 for it. A lot of cash, but worth it if it solves the problem.

The thing is, I don't have the pulley on a motor, so I don't know if it fits correctly or not. The pulley has two grooves in it. I think one can be used for this application. If you want to tell me what offset you need between the wp mounting surface and the pulley groove, I'll check my pulley and tell you if it matches up.

The Maverick pullies that I used had a different offset on the waterpump so it placed the belt closer to the front of the motor so the alternator belt would clear the bracket and the crank pulley was smaller so it cleared the water pump pulley.I guess since the crank pulley is smaller I am underdriving everything a bit but it seems to work fine.

how about this.

keep the upper and lower pulleys.
and move the alternator back to where its groove lines up with the other grooves orf the other pulleys.

You would just need to shorten the alternator spacer and either bend or fab. a new front alt. bracket.
The difference from groove to groove on your crank pulley is usually around 3/4"

grego37 said:

how about this.

keep the upper and lower pulleys.
and move the alternator back to where its groove lines up with the other grooves orf the other pulleys.

You would just need to shorten the alternator spacer and either bend or fab. a new front alt. bracket.
The difference from groove to groove on your crank pulley is usually around 3/4"

Click to expand...

I think that if he does that, it's going to interfer with the dipstick. It's worth a try though. It would also help to use a shorter pulley, such as the 390 one I have, but it needs to be the same diameter or a little smaller to clear the crank I think. I also had a small block pulley but it used a smaller V belt, I don't think it would have worked well.