Anyone know what intake this is? GM Part?

[NorCam]

Originally Posted by rszmjt

It’s a early issue 1971 Z28, with the cast over oil fill tube hole, late 71 and 72 up had the cylinder numbers on runners. Take bottom shield off to check date, that will tell you.

Thanks Mike. I'll take the splash shield off when I have it tumbled next week. Much appreciated.

[frankk]

Norcam did you make your own tumbler?

[RALLY]

Originally Posted by NorCam

Thanks Mike. I'll take the splash shield off when I have it tumbled next week. Much appreciated.

No way i would of tumbled that intake. I use Navel Aluminum Jelly from Loctite. Great cleaner. Soak intake in real hot boiling water, remove and brush on this Aluminum Jelly let it set for a good 10 minutes, put intake back in boiling hot water and brush off with a good paint brush. This will leave a natural casting finish just like the intake came out of the foundry. Just my two cents.