Do you have a 1972 Plaid Pickup?

[SS Tim]

Originally Posted by Chevy Fan Always

Does anyone know what this part is? Mounted right side on the frame, has two holes in the top and is shaped like some sort of scoop. I forgot to ask the owner.

Those were factory installed on the small blocks (350s only?) to help cool the manifolds. They ran hotter with the emission controls working corrctly and apparently the air flow reduced cracking. Somewhere I have a passing mention in a service or training bulletin. Most of the time they are missing or bent back.

If you are in picture mode some of the evap system, idle solenoid and related harness would be appreciated. its so nice to see a truck correct in so many ways.

[DeadheadNM]

Originally Posted by SS Tim

Those were factory installed on the small blocks (350s only?) to help cool the manifolds. They ran hotter with the emission controls working corrctly and apparently the air flow reduced cracking. Somewhere I have a passing mention in a service or training bulletin. Most of the time they are missing or bent back.

Designed to help prevent damage like this I suspect (pic from Tbone1964) but will add as an aside that I do not believe 4wds were so equipped...

[Chevy Fan Always]

Originally Posted by SS Tim

Those were factory installed on the small blocks (350s only?) to help cool the manifolds. They ran hotter with the emission controls working corrctly and apparently the air flow reduced cracking. Somewhere I have a passing mention in a service or training bulletin. Most of the time they are missing or bent back.

If you are in picture mode some of the evap system, idle solenoid and related harness would be appreciated. its so nice to see a truck correct in so many ways.

there you go Tim. Let me know if you need anything else. The TCS hoses have been joined together.