I have a 7040258 carb that I will be selling and if it is a restamp I do not want to sell it as an original carb. Please let me know how to tell if it is a restamp which I believe it is but the numbers look really good.....thanks Lee

 

it appears to be a restamp. as you can see the machined line between the pad and body of carb.

 

so was the 258 added or the whole #. I have never seen a restamp.

 

I don't necessarily agree. I think a pic of another one that wasn't re-stamped would help immensely. I'm far from convinced its a re-stamp.

 

somewhere in my garage I have a 7040257 carb that I know is real but I cant find it to post a picture. Can someone please post one to compare. Thanks for keeping the drama going Kurt........

 

I'll dig up some images I have pictures of my 258 which is real and I have a 257 as well, the first pic you posted looks like it could be a restamp but the 2nd one looks pretty good. I know W30 carbs were built on certain dates I'll check mine and get back to you on what date code mine has

 

that's a really nice restamp, too bad they didn't match the texture of the surrounding area.



bill

 

I would also like someone to post a picture of a restamp to compare to this one. So far two fake, one maybe and I have no opinion since I dont have one of my real ones here to compare.

 

here are two pics I found, one a clear view of my 257 and one a good shot of the 258 but I can't really see the stamping. I'll continue to look.

 

i had recently sold a body of a original 258 carb with a date of 3079. the texture was not in any way different in the area of the #s than the rest of the carb. to answer your question i believe the whole # was restamped. not trying to knock your carb. its just my opinion.

 

That area was smoothed-off,then all of those numbers were stamped on there.The rounded edge is not gradual either,which is a sign that material has been removed.That date is also not one of the dates that they were made.Those carbs were made in batches,on certain days,and that is not one of them.The 3079,that was mentioned previously,is a correct date.One thing you can do is look at the casting numbers on the base,and the body,& let us know what those are.The casting number for the top can't be seen without taking the top off,so don't bother with that.

 

the base has a # 38285 stamped into it near the rear right bolt hole, a 42 stamped into the body in the rt rear side and a 42 stamped into the top part by the right rear. I dont know where to look for more #s and dont see any casting #s. Looks like it will be sold as a nice restamp based on the experts in this discussion. You all seem smarter than I since I bought the thing probably for more than it is worth.

 

You are looking for casting numbers,not stamped numbers.They are in a real small circle. The ones on the base will be near the left rear mounting hole.The ones on the body will be on the back,slightly to the left.

 

you certainly know your stuff. On body is 7038266 on base is7038294

 

I found another discussion on restamped carbs in real olds power. That carb looks like a restamp because the numbers 256 look different.

http://www.realoldspower.com/phpBB2/...c5e246d0a23762

 

How did you get on realoldspower??? Or were you just reading? ---bil

 

They did use a 70 Olds 455 carb to do your 258,so they did some homework,but just not enough.The base is correct,but the 258's that I have had,were the 7042305.
They could have possibly used the 7038266 body for some of the early 258's,but I have never seen any.The 7042305 was also used for the 71 455 carbs.
It all comes down to application.There are different castings for a reason.

 

I will now be able to sell this carb with peace of mind that it is a good restamp on a 1970 carb. I think I paid a few hundred dollars so I will try to recoup my investment. Very helpful to be able to use the experts in this group. BTW I am the person that had a matched set of 1970, 1971 and 1972 w-30 convertible 4 speeds. I am restoring my 1970 at Level One Restoration in Denver for the 2011 Nationals and I still have my 1971 m-22 car. The 1972 x car was sold to a friend a while back. If you want to see the progress go to the web site levelonerestoration.com Thanks for all your help.........Lee Pearl

 

As a post note to all of this:
It may help to stop and look at what all of this means. The purpose of having a correct numbered carb is to have the correct carb itself, not just the "right numbers". Unless you're one of the "numbers matching" type that only cares if the numbers are right! (Believe me there are plenty of those out there. See the thread with the distributors that are being offered for sale stamped with whatever number you want)

Having a component (like a carburetor, starter, alternator, etc. that can and is often rebuilt) with the correct number does *not* mean that the component as a whole is correct! As Brian has already shown, there are parts of the components that are specific to a particular number. And that drills down to things like metering rods and jets even. Its all of *these* things that truly make a carb correct, not the number! And all of these items can be changed in a rebuild.
Methinks much of this all gets lost in the numbers matching mania.........

 

I listed the carb on ebay today October 25th. Tried to be honest and will see how it goes. Thanks for all your help....Lee ebay 330489088151