I'm looking for a MS-427-16 vacuum advance. Prefer NOS but would entertain a used working one. Please pm with what you have.

Thank you.

 

I think we all want one of these...they can repop hoods and OAI flapper motors and crap, why not a little vacuum advance can?

 

Ah the holy grail... I've been looking for one for almost a year. Ended up buying one from supercarsunlimited.com they claim is a direct replacement (except the vacuum nipple is straight). Try this link...

https://www.supercarsunlimited.com/V...nits-i212.aspx

 

Has anyone used one of these repro cans and checked to see if it actually works as advertised? I guess if it's close it would be ok, but nothing beats original GM stuff IMO when it comes to things like this.

EDIT: Derp! I missed the part where it said you bought one. Does it work as it should?

I have one now that works on the 973 distributor and a spare can that leaks. The working one doesn't look pretty, but it works. If I could find a place that rebuilds them with a new diaphragm it would be nice to get the spare redone. Just in case.

 

Vader,
PM sent.

 

I agree, original is best.

We put the repro on a vacuum gauge and it does register and hold at 16. I haven't had the car running with it installed yet.

I opened my original 427 and found a 1/4" tear in the diaphragm. Wonder if I can canabalize the new one for its diaphragm assembly...

 

What is the value of one of these 427-16 units?

 

Kinda pricey if it's NOS or in used but great shape and fully operational.

Why, you got one? There's only like 75 or 80 people looking for one.

 

I got this one. It came on my 1970 distributor I'm having rebuilt.

 

Are you wanting to sell it or just telling us you have one? If it works and doesn't leak, I'd be interested in purchasing said unit.

 

I don't know if it works. I just took it off the distributor I sent it out to have rebuilt. I'd have to take it to a garage and have them test it for me. I'll probably sell it if I can ever figure out what they are worth. Hence my original question in this forum. I can't seem to find any that have been sold to judge a value of it. As an appraiser, I need something to compare it to.

 

Ad from a couple years ago. If this helps.

https://classicoldsmobile.com/forums...dvance-122656/

 

ASK VADER
I would think $250

 

I sold a few at $125. I think I have 1 or 2 left if anyone is looking.

 

So do all of those have a limiter bushing or is that something that someone added? My original HEI advance can was a 24º unit and a busing similar to that cut it down to 16º.

Just wondering if the original specs are with the bushing installed or sans bushing.

 

I know you've probably found one but I've got one. My dad passed away last year. He and I bought an old GM Dealership Building and saved all the parts in it with plans on finally fixing his 67 442. But we ran out of time. But I no longer need it anymore. If u need it just let me know and I'll do whatever is best for u to get it.
Have a good one,
David B

 

PM sent

 

Hi David, I would be interested in buying that from you. Let me know what you would want for it please.

 

PM Sent