Torque Converters for Internally Balanced vs Externally Balanced Small Blocks
Just to show what you're looking for, here are the early 360 convertor weights; two weights, one on each side of the drain plug (early to mid '70s):
And here is the later 360 weight (single weight, beginning late 70s):
With a bunch of mismatched parts, you could have either one- but they are interchangeable.
A neutral/internally balanced convertor will have no weights on the face of the convertor.
To use an internally balanced convertor on a 360, just use the B&M 10239 flexplate.
Just to show what you're looking for, here are the early 360 convertor weights; two weights, one on each side of the drain plug (early to mid '70s):
And here is the later 360 weight (single weight, beginning late 70s):
With a bunch of mismatched parts, you could have either one- but they are interchangeable.
A neutral/internally balanced convertor will have no weights on the face of the convertor.
To use an internally balanced convertor on a 360, just use the B&M 10239 flexplate.