Is there a 1-V harmonic balancer for the 250?

[62Ranchero200]

I don't have P/S or A/C and almost certainly never will; my 2,400 pound Ranchero is easy enough to steer, even at parking lot speeds, and at speed the vent windows provide enough air flow to keep me cool. The space between the water pump and the radiator is seriously cramped because I had to use a fan spacer so that the fan would clear the 2-V harmonic balancer. If I could find a 1-V harmonic balancer for my 250, I could use a thinner fan spacer and gain more clearance between the fan and the radiator.

Considered cutting the second pulley off, but the balancer would become unbalanced, right?

Thanks
Bob the Builder

 

[CoupeBoy]

I can't answer to whether a stock one exists or not.. But I can tell you that I read this thread a while back and stored its information for later. FTF is a pretty smart fella, so to me it reads that 240/300 single groove harmonic balancer should work on a 250 with the addition of a machined spacer. I happen to have a 240, with a single groove balancer, and a 250, without a harmonic balancer, sitting in my shop on the floor, I just haven't tried this puzzle yet.
300 balancer differences

At the advice of a few others, I was planning to use a 300 balancer in an effort to convert my 250 over to serpentine. When comparing that balancer to the 2v balancer that came stock on my 250, there is a significant difference in the depth of the snout that would slide onto the crank. It appears to be about .700 shorter than the 250 balancer. Naturally, I have an issue using a balancer that doesn't fully engage the input snout of the crank, so I'm wondering before I box it back up and return it,......are there differences between the years where some 300 balancers were deeper than others?

I thought the crank snouts were different diameters between the small 6's and the 240/300's.

diameter is the same on 250 and 300. The 200 crank is way smaller though.

Since no one has bothered to offer a reply, I have to assume that "one size fit's all" with regard to the serpentine 300 balancer. The balancer will go on the crank, and when measuring the amount of contact surface area the balancer will actually be bolted to, it appears that there will be about 1.300" of crank holding the balancer.(approximately) That leaves a whopping 11/16" distance between the end of the crank, and the front of the balancer.
Now I don't know if that's a bad thing, but to me it says I should look for another solution.

I would solve the problem with a spacer machined to the needed thickness. 1.3 inches of engagement seems like more than enough, when one considers that a driveshaft yoke transmits engine torque with about the same amount of engagement.