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Gentlemen, I have a 3963512 block, cast date E 23 9 (May 23, 1969) which has stamping of TO527LR (May 27 build date, 427/435 iron heads, manual trans), and NO VIN derivative.
I think it may have been a warranty engine. I pulled it out of my 1969 427/435 (build date of September, 1968), it worked great, no sleves or welds, etc.
The block will have no increased value since it can't be documented without the VIN stamp; being installed in the matching original vehicle. The only thing that helps its value is if you have a buyer looking for a specific dated engine which corresponds to yours.
The block will have no increased value since it can't be documented without the VIN stamp; being installed in the matching original vehicle. The only thing that helps its value is if you have a buyer looking for a specific dated engine which corresponds to yours.
I realize that this is only of value to a particular individual who is looking to do a numbers matching restore of a BB 1969 with a build date in June '69 or later (none were built in May due to a strike). Obviously, with only 2,722 L71s for '69 built and 45% of those after April, this is one of only about 1,200 ever made, so it is pretty rare, and clearly valuable to a guy who's restoring his '69 BB to NCRS standards.
Crane's and Tracy Performance sell mid-year and '68-'69 dated BBs for a pretty penny (I know, I bought one for my resto). EBay has completed auctions in the $2,500-$4,000 for rare blocks.
It's only valuable to someone willing to re-stamp a 'bogus' VIN number on that blank block. And, basically, someone willing to do that can gin-up an original looking block with 'bogus' numbers on about any appropriate block. Anybody can 'forge' a block if they want to... As mentioned above, stick it on eBay and see what you get.
It's only valuable to someone willing to re-stamp a 'bogus' VIN number on that blank block. And, basically, someone willing to do that can gin-up an original looking block with 'bogus' numbers on about any appropriate block. Anybody can 'forge' a block if they want to... As mentioned above, stick it on eBay and see what you get.
I bet he's still answering PMs, not that I think anyone here would do such a thing.
It's only valuable to someone willing to re-stamp a 'bogus' VIN number on that blank block. And, basically, someone willing to do that can gin-up an original looking block with 'bogus' numbers on about any appropriate block. Anybody can 'forge' a block if they want to... As mentioned above, stick it on eBay and see what you get.
I don't fully agree here. Someone trying to restore a big block car to NCRS standards could use this block as-is and just take the 25 point deduction for it being missing the VIN derivative stamping, the deduction being small enough they could still get a Top Flight out of it. That said, the unfortunate reality is that whoever actually shells out the cash for this block is probably looking to make a "clone" of a 435 Hp car, which I am guessing they will mistakenly forget to tell the person who buys the car from them.
...Someone trying to restore a big block car to NCRS standards could use this block as-is and just take the 25 point deduction for it being missing the VIN derivative stamping...
May not be that simple. This block is dated May when the plant was on strike and not in production. Engines for the cars on the line at the time the strike began would have been dated prior to the strike and would have been on hand at St. Louis ready to be installed had production continued. Someone wanting to use this block would have to confirm that GM continued to take orders for new Corvettes during the strike and continued to send orders for engines to Tonawanda through out the period.
May not be that simple. This block is dated May when the plant was on strike and not in production. Engines for the cars on the line at the time the strike began would have been dated prior to the strike and would have been on hand at St. Louis ready to be installed had production continued. Someone wanting to use this block would have to confirm that GM continued to take orders for new Corvettes during the strike and continued to send orders for engines to Tonawanda through out the period.
Tonawanda foundry still pumped out blocks in May 1969, while the assembly plant in St. Louis (and other Chevy assembly facilities) was on strike. Production resumed at St. Louis in june 1969, so this block would be appropriate, according to NCRS rules, for any 427/435 Corvette built in June through November, because NCRS allows up to a 6 month window between cast date and car build date. I don't think order dates make any difference.
There were approximately 1,000 427/435s (extrapolating from total production) built between June and the end of November and this block is appropriate for that production period.
May not be that simple. This block is dated May when the plant was on strike and not in production. Engines for the cars on the line at the time the strike began would have been dated prior to the strike and would have been on hand at St. Louis ready to be installed had production continued. Someone wanting to use this block would have to confirm that GM continued to take orders for new Corvettes during the strike and continued to send orders for engines to Tonawanda through out the period.
I was one of the individuals who placed an order for a 69 in mid April, the dealer returned my $100.00 deposit a few weeks later when I asked about delivery date after I heard of the strike...
The dealer, being a good guy, found my 68 at Roger Penske Chevrolet in Philly...was an 8 hour trip from Cleve to Philly....
...Tonawanda foundry still pumped out blocks in May 1969, while the assembly plant in St. Louis...was on strike....this block would be appropriate...for any 427/435 Corvette built in June through November, because NCRS allows up to a 6 month window between cast date and car build date...
That makes sense. If Tonawanda was not affected by the strike, we could assume Flint was not affected either. Tonawanda almost certainly had an order from St. Louis to produce this engine so it appears St. Louis continued to accept orders for new Corvettes during the strike.
even though it is stamped LR, i remains to be seen regarding broach marks as well as proof it's a 4 bolt... the 512 block was used in the big chevys and trucks also..
also, sure it may only get a 25 point deduction when ncrs judged, but is that the point?.. I would not buy a car and spend original engine money on a car without a VIN Derivative stamped and I would have it clarified by someone alot more knowledgable than me, by someone that can spot all but the best of the restamps.
which bring up another question... why did you take out a LR stamped 435 out of a 69 vette and want to sell the engine in the open market?
also remember that if you put it on ebay, then someone will have to pay around 400 to ship it, that lowers the max price one would be willing to pay.. and less you will get... it is hardly profitable selling something like that due to the extreme shipping cast..
if it includes the internals, manifolds, with heads, maybe 2000$..
Gentlemen, I have a 3963512 block, cast date E 23 9 (May 23, 1969) which has stamping of TO527LR (May 27 build date, 427/435 iron heads, manual trans), and NO VIN derivative. What do you think it is worth to a restorer?
Assuming that there are "typical" broach marks all the way across the pad, and it never had a VIN derivative, and the block is sound, I'd say it is worth somewhere between $2000 and $4000 for the raw block.
It would probably judge well w/o a VIN derivative, and it is MUCH easier to stamp one set of numbers than two.
I see NOTHING wrong with the OP trying to sell the block as-is for whatever the market will bear. Anyone buying a C3 being represented as a L71 should rely on much more than the engine assembly code stamp or pay accordingly.
Interesting dates for this story: My 427/435 block was cast March 10, '69, pad code T0325LX (Tonawanda March 25 427/435 iron head TH-400), but the trim tag date is June 23, '69.
Your block would be ideal for a July or later car, would serve for a June car. Thanks for sharing and asking the question, I enjoy the type of discussion your question has fostered.
if it includes the internals, manifolds, with heads, maybe 2000$..
Sounds low for a dressed block, a decent set of '69 exhaust manifolds is $500, heads are no less than $1500. And a tri-power intake is about $1000 without carbs.
Assuming that there are "typical" broach marks all the way across the pad, and it never had a VIN derivative, and the block is sound, I'd say it is worth somewhere between $2000 and $4000 for the raw block.
It would probably judge well w/o a VIN derivative, and it is MUCH easier to stamp one set of numbers than two.
I see NOTHING wrong with the OP trying to sell the block as-is for whatever the market will bear. Anyone buying a C3 being represented as a L71 should rely on much more than the engine assembly code stamp or pay accordingly.
Interesting dates for this story: My 427/435 block was cast March 10, '69, pad code T0325LX (Tonawanda March 25 427/435 iron head TH-400), but the trim tag date is June 23, '69.
Your block would be ideal for a July or later car, would serve for a June car. Thanks for sharing and asking the question, I enjoy the type of discussion your question has fostered.
Steve
Thanks Steve:
I agree with you. Yours works well; it was cast and built in a short time frame in March, but due to the strike, it probably sat on the floor of St. Louis during the strike and was put in one of the June cars after the stike ended.
While it is impossible to determine the exact origin of my block, the casting dates are very, very clear (visually), and a cast date of May 23 and a build date of May 27 makes sense (engine assembly took place adjacent to Tonawanda foundry, but they needed to be shipped via rail to St. Louis) for a car with a build date of mid June-November.
Mine has a "grease pencil" LX on the back of the block, maybe yours has some remnant of the LR as well.
Good luck with the sale.
Steve
Originally Posted by Ravine Speed
Thanks Steve:
I agree with you. Yours works well; it was cast and built in a short time frame in March, but due to the strike, it probably sat on the floor of St. Louis during the strike and was put in one of the June cars after the stike ended.
While it is impossible to determine the exact origin of my block, the casting dates are very, very clear (visually), and a cast date of May 23 and a build date of May 27 makes sense (engine assembly took place adjacent to Tonawanda foundry, but they needed to be shipped via rail to St. Louis) for a car with a build date of mid June-November.
...Interesting dates for this story: My 427/435 block was cast March 10, '69, pad code T0325LX (Tonawanda March 25 427/435 iron head TH-400), but the trim tag date is June 23, '69...
Your car was caught in the strike. The engine assembly date of March 25 suggests she was set for April assembly. It's possible assembly actually began in April but she did not get to the station on the line where the trim tag was attached until June 23, after work resumed.