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So you want to go together on the cheap? I can respect that.

If you are going to file fit the rings, look for a set of 4.380 rings. Rings is rings, you pretty much get what you pay for, but as long as the groove width and depth are right, and the bore is right, they work. And most groove depths are set by a formula determined by diameter.

Some possibilities:
0.020 oversize 460 ford
0.030 oversize 403 olds
0.040 oversize 400 Chrysler
0.050 oversize 440 Chrysler

I'd suggest looking for a Moly set and having the block honed to match.

R.

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