Safety motor mount year change?

[David L.]

Re: Safety motor mount year change?

My 1969 427 built 12/11/69 has the non capture style mounts, it still has the tin heat shields in place, i bought the car in 1979.

Ralph,

You must have one of the last 1969 Corvettes built. Do you know the last day of production or the VIN of the last 1969 built?

It appears that the new style locking mounts made their debut on the 1970 production line.

Dave

[Joe L.]

Re: Safety motor mount year change?

Ralph,

You must have one of the last 1969 Corvettes built. Do you know the last day of production or the VIN of the last 1969 built?

It appears that the new style locking mounts made their debut on the 1970 production line.

Dave

Dave-----


The final 1969 S/N was 38762. However, I don't know what day it was built. I think it was pretty close to the end of the month, though.

[Ralph S.]

Re: Safety motor mount year change?

From the book of numbers that Terry McManmon & I have been collecting the last 69 shows up as being built on Q18 12/18/69 it was a thursday.

[Dick W.]

Re: Safety motor mount year change?

Ray, it's not a question, only an opinion, based on the fact that soon after I put a specific comment about one of my cars on the board I was contacted by an idiot with a foreign accent inquiring about the availability of this car. In the course of the conversation where I was asking his source of information he said that he'd seen it on the internet. Since I do not post on other Corvette forums regularly, and not at all in the last several years, and have never mentioned this car otherwise it was obvious that he saw it on NCRS, which ANYBODY in the world can now access for a free trial and harvest screen names and information. People with relatively uncommon names like mine are easy targets for spammers and scammers who can simply then do an internet search with something like Intellus, or one of the other search engines and find the list of anybody with a given name and then narrow the field. There are office buildings full of people in countries like Nigeria that do NOTHING except scam and steal on the internet and it's a shame that the policy here on this is short sighted enough to give them potential ammunition. I have written to several of the NCRS officials in the past complaining and have never gotten a response. Incidentally, I am aware of at least one other NCRS member who has a relatively unique car and has had a similar experience with an unsolicited contact from a non member who feels with certainty that it was initiated from his full name being displayed here along with an internet search.

I have seach software that will dig a lot deeper than Google or the other search engines. I put my name Dick + Whittington + NCRS in somewhat of a Boolean search format, and only came up with instances of my name showing up in chapter newsletters, AACA Forum, my business, etc. NOTHING from the TDB. With the password protection, the web crawlers that are used to mine information cannot penetrate this site to harvest any information.

[Steven G.]

Re: Safety motor mount year change?

David, my 70' lost it's shields 30 years ago, the mechanic saved time replacing wires. I have 2 sets like your 70-74 pic., having additional cut outs, however one set is different, It was removed from my 72' base engine, having a part # 3973402 on LH end bracket, my other set are the same as yours having uncircled AS stamp on open end bracket for bolt. I am guessing but I think at least a 72' and older shield may have some similar features, the AS stamp is circled, end brackets are cut on 45 not 90, has a part # on end bracket with a boxed 4 stamped adjacent to that part # like my 72'. I now think your 70-74 pic. actually is for a 73 up because they lack stampings, have 90 corner on end bracket not 45, less cutout at the bracket end, and generally appear cheaper than a 72'. The bracket mounting holes are the same on both my brackets and probably yours as well so that is not an issue. David, if Joe can try to verify the part # above, we have 2 different shields for 70-74, and maybe more, not including 70' and 71' that is, if they are different in some way from my 72', I may have to send you a pic., haven't tried to post a pic.lately but have been unsucessful in the past ? I plan to have a 70' L-46 and 72' base on engine stands with the shielding in place to photo but having the correct 70' shielding may be a problem ? Steve

[Ray G.]

Re: Safety motor mount year change?

I have seach software that will dig a lot deeper than Google or the other search engines. I put my name Dick + Whittington + NCRS in somewhat of a Boolean search format, and only came up with instances of my name showing up in chapter newsletters, AACA Forum, my business, etc. NOTHING from the TDB. With the password protection, the web crawlers that are used to mine information cannot penetrate this site to harvest any information.

Hello Dick;
Good work. Affirmation for NCRS members.
Thanks.
Ray

[David L.]

Re: Safety motor mount year change?

David, my 70' lost it's shields 30 years ago, the mechanic saved time replacing wires. I have 2 sets like your 70-74 pic., having additional cut outs, however one set is different, It was removed from my 72' base engine, having a part # 3973402 on LH end bracket, my other set are the same as yours having uncircled AS stamp on open end bracket for bolt. I am guessing but I think at least a 72' and older shield may have some similar features, the AS stamp is circled, end brackets are cut on 45 not 90, has a part # on end bracket with a boxed 4 stamped adjacent to that part # like my 72'. I now think your 70-74 pic. actually is for a 73 up because they lack stampings, have 90 corner on end bracket not 45, less cutout at the bracket end, and generally appear cheaper than a 72'. The bracket mounting holes are the same on both my brackets and probably yours as well so that is not an issue. David, if Joe can try to verify the part # above, we have 2 different shields for 70-74, and maybe more, not including 70' and 71' that is, if they are different in some way from my 72', I may have to send you a pic., haven't tried to post a pic.lately but have been unsucessful in the past ? I plan to have a 70' L-46 and 72' base on engine stands with the shielding in place to photo but having the correct 70' shielding may be a problem ? Steve

Steve,

I also have a LH "V"-shield stamped "3973402" on the small end bracket. I also have two RH "V"-shields that have "A.T." & "354422" stampings on the back side which I have not been able to identify. All 3 of these "V"-shields have additional modifications when compared to my 63-69 "V"-shields.

Dave

[David L.]

Re: Safety motor mount year change?

From the book of numbers that Terry McManmon & I have been collecting the last 69 shows up as being built on Q18 12/18/69 it was a thursday.

Steve's 1970 Corvette was built 1/5/70.

[Joe L.]

Re: Safety motor mount year change?

Steve,

I also have a LH "V"-shield stamped "3973402" on the small end bracket. I also have two RH "V"-shields that have "A.T." & "354422" stampings on the back side which I have not been able to identify. All 3 of these "V"-shields have additional modifications when compared to my 63-69 "V"-shields.

Dave

Dave------


In PRODUCTION, these "V" shields were built-up from their component parts. One of the component parts was the GM #3973402 reinforcement. As far as I can tell, none of the component parts of the shields was ever available in SERVICE. So, you won't find any of the part numbers in a P&A Catalog.

In SERVICE, the shields were supplied as complete assemblies including all reinforcements, brackets, rivets, etc. The part number for the assemblies was SERVICE-only since these assemblies were not used in PRODUCTION.

The component parts of the SERVICE assemblies usually had the same part numbers as those used in PRODUCTION. However, the rivets used on the SERVICE assemblies are often different than those used on the PRODUCTION pieces.

[David L.]

Re: Safety motor mount year change?

Joe,

I have already researched those numbers and I agree, they are the part numbers of the individual components.

The 63 AIM (U69, sheets 8.00 & 9.00) lists the individual components of the "V"-shields --- the shield, supports, and rivets.

Dave

[Steven G.]

Re: Safety motor mount year change?

Steve,

I also have a LH "V"-shield stamped "3973402" on the small end bracket. I also have two RH "V"-shields that have "A.T." & "354422" stampings on the back side which I have not been able to identify. All 3 of these "V"-shields have additional modifications when compared to my 63-69 "V"-shields.

Dave

The LH "V"-shield stamped "3973402" on small end bracket must be the same as my 72' #3187, the RH from same car has uncircled "AS" on long bracket but no other stamp or bracket # on short bracket. If comparing # sequence, your "354422" bracket # may be from an earlier year than a 72' ?, just a thought. Steve

[Joe L.]

Re: Safety motor mount year change?

The LH "V"-shield stamped "3973402" on small end bracket must be the same as my 72' #3187, the RH from same car has uncircled "AS" on long bracket but no other stamp or bracket # on short bracket. If comparing # sequence, your "354422" bracket # may be from an earlier year than a 72' ?, just a thought. Steve

Steve-----


GM #354422 is actually from a LATER year-----first used for the 1975 model year.