Hello, I'm new to the forum and to firebirds as well. I just picked up a 400 coupe. The car has undergone a fair to pretty good restoration and was represented to the previous owner (who took it in trade for some land) as an original engine car. Now the " interesting" part, neither he nor now I can figure out why there is a YS coded block in the car. What is more confusing is that there does not seem to be any stamping down where the block vin # should be. I stripped the paint to bare metal from the radiator hose down and can't se anything I'd call a number. Is it possible that a dealer would put a replacement block with a YS code into a Firebird? Any insight woulD be GREATLY appreciated!!!
massrog
Joined
·
15 Posts
Thanks. Yeah, this needs some work but is a more solid than the last two cars I built.
My bird in the background: Hot Wheels Designer Built a Firebird, Then Made it a Toy! Pics below after it came back from acid dipping (2x). I ended up replacing most of the body, so I changed it a bit along the way.
Joined
·
15 Posts
noted on no VIN for this block. thanks, guys. I delivered the block to my engine builder, had it checked and cleaned, and it's good to build. Original bore, too.
As for the car itself and pics, it's a new acquisition to me- a craigslist purchase from a few weeks back. it's an abandoned project the previous owner collected parts for many years but never got around to it and bailed. so now I'll have some fun putting it all back together, after I replace the trunk floor and tail panel, and straighten the front frame end, and fix the inner cowl, and a few other things
![Image]()
![Image]()
![Image]()
![Image]()
As for the car itself and pics, it's a new acquisition to me- a craigslist purchase from a few weeks back. it's an abandoned project the previous owner collected parts for many years but never got around to it and bailed. so now I'll have some fun putting it all back together, after I replace the trunk floor and tail panel, and straighten the front frame end, and fix the inner cowl, and a few other things
Joined
·
15 Posts
Yes, I'm reviving a nearly 10 year old thread here, mainly because it's the closest (and only) thread I've found on this subject. I just acquired a '67 Firebird 400 4 speed project and the seller claimed this was a #'s matching car and that he had it over 20 years. It's all apart and has done a fair amount of sitting and as I look closely at the block I'm not able to locate the VIN. Upon date coding the block the casting # in front appears correct for a '67 400, the WU appears correct for manual transmission, if I read it right the date cast on the rear decodes to Feb 1, 1967 (night shift) and according to 1st gen Firebird decoder my car was built 3+ weeks afterwards. (currently have the PHS on order, too)
This tells me the block is "correct" for the car but without a VIN I can never prove it's the original born with engine. While I won't lose any sleep over this, I'm taking the time to post all this here to keep this info going for other Pontiac enthusiasts who may also run across this issue.
Or maybe the VIN is right in front of me and I need my eyes checked, or it's elsewhere on the block?
![Image]()
![Image]()
![Image]()
![Image]()
![Image]()
![Image]()
![Image]()
This tells me the block is "correct" for the car but without a VIN I can never prove it's the original born with engine. While I won't lose any sleep over this, I'm taking the time to post all this here to keep this info going for other Pontiac enthusiasts who may also run across this issue.
Or maybe the VIN is right in front of me and I need my eyes checked, or it's elsewhere on the block?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
