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

The content cannot be displayed because you do not have authorisation to view this content. The content cannot be displayed because you do not have authorisation to view this content. The content cannot be displayed because you do not have authorisation to view this content.

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.