Actual width of hipo timing chain

Wanting to confirm with the community the actual width of the hipo timing chain. Tony Gregory’s book, incorrectly I believe, states it is 13/32” (0.406”) wide and the regular chain is 1/2” (0.500) wide, meaning OUTSIDE width.

When I measure my NOS Ford hipo timing chain (C3OZ-6268-A) still in the box, it is .630” at the widest point, which is at the pins.

When I measure an original regular early 289 chain, it is 0.720” wide at the pins.

Can someone confirm these measurements are correct, and also there is no such thing as a 13/32” wide hipo chain? That number is actually the hipo gear tooth width, and thus the INNER measurement on the chain.

Thanks

Rich

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More proof from the Ford MPC showing the early hipo cam gear was 13/32”, not the chain. This would be true for late parts (post L7) as well, as the hipo gear and chain width never changed.