Brain Fart...Adapting GM wheels to my Speedster | 356 Speedster, 550 Spyder, Replica, Automotive Community

Former Member

I had a brain fart the other night.....

I was looking through a flyer for CIP1.com and saw some brake drums and disks for a Type 1 drilled and tapped for a Porsche 5 X 130 mm pattern.

I was thinking that I could get a set of these and have them drilled for the GM 4.75 5 lug pattern adn have studs installed.

This would allow me to get wheels with a smaller backspacing and the wheels would have a deeper look than if I used adapters.

What do you guys think.

Jerome

10/9/028:01 AM

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Former Member

I had a brain fart the other night.....

I was looking through a flyer for CIP1.com and saw some brake drums and disks for a Type 1 drilled and tapped for a Porsche 5 X 130 mm pattern.

I was thinking that I could get a set of these and have them drilled for the GM 4.75 5 lug pattern adn have studs installed.

This would allow me to get wheels with a smaller backspacing and the wheels would have a deeper look than if I used adapters.

What do you guys think.

Jerome

Former Member

Absolutely. There are "blanks" available from a lot of places. My advice is that you get a good machine shop to drill them for you though. It doesn't seem like rocket science, but at a show a few weeks back we were talking and it came up that two guys had both had a bad experience with getting them drilled right.

Former Member

Thanks....

So the blanks have everything machined except the bolt holes?

Can you name a couple of sources?

BTW: I have a good machinist who works for beer.

Jerome

10/10/028:10 AM

Former Member

I'd start with CB Performance. I know that RocketWerks here in DFW had a set. And if they have them, they gotta be about everywhere.

10/10/025:50 PM

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