Machining Air Grabber Turn Signal Openings

[Moparfiend]

Anyone here successfully opened up the Air Grabber signal opening in the cast material of the 70 hood? If so what did you use and your experience?

I unfortunately no longer have access to the Bridgeport. So its going to be air grinder and file?

Is this stuff magnesium?

 

[dadsbee]

Haven't done so, but my "go to" would be a Unibit.

 

[Moparfiend]

Haven't done so, but my "go to" would be a Unibit.

Thanks Wayne. Yes that’s what I used to make the hole seen above. Ill see what it’s like to die grind it out and then file the flats out.

 

[mr_belvedere]

Likely die cast zinc/potmetal

 

[b-body-bob]

I did it with a Dremel. Better control than with a die grinder, smaller tools too. IIRC I used what looked like a tiny end mill. Tapped the holes for the turn signal to mount. Worked out perfectly.

 

[Moparfiend]

mine came out very well too although it would have been better if they were already cast that way.

 

[WileE]

mine came out very well too although it would have been better if they were already cast that way.

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Looks great !!