Header Adapter or flanges?
 

Anyone recognize what these are?

Came with a load of Poncho parts.

Any help is appreciated. Trying to figure out exactly what they are.https://uploads.tapatalk-cdn.com/202...923acf72bf.jpg

Sent from my moto g power 5G - 2023 using Tapatalk

Looks like Hedman Hustler round port header flanges

The bolt pattern matches SBC Brodix head spread ports. Here’s a picture I saw online. Looks like yours may be for 2-1/8” primaries.

Here's a D-port Hedman Hustler header and the adapter/mounting plate on a 6X head.

Definitely SBC.

No aftermarket Pontiac heads have the center port outside bolt holes below the horizontal center line of the ports.

Thanks.

Someone picked stuff up for me and thought might be Pontiac so they got them.

Sent from my moto g power 5G - 2023 using Tapatalk