Source for GM bulkhead terminals

[JohnR66]

Hello

I am looking for the male and female terminals that would go inside the bulkhead connectors of old 60's GM cars. Specifically a '66 chevelle. These are the terminals located inside the bulkhead connector (and harness) on the firewall of the vehicle. One terminal goes in the bulkhead connector, the matching terminal goes inside the engine wiring harness connector.

I wish to reuse the existing connectors, and do no want to purchase a aftermarket setup.

Any GM part numbers or a source would be appreciated. I did find one place that sold a repair kit geared towards corvette owners. It did not have enough of the connectors and was extremely expensive.

Thanks in advance
Regards
John