Block #'s
Thread Starter
Racer
Joined: Jul 2004
Posts: 400
Likes: 1
From: California
Block #'s
i tried getting my block #'s to see what i got in my vette because it doesnt feel stock, but who knows?
this is what i found, i dont know which way they were supposed to be read from, but i found this:
M090L9VP
can someone help me find out what i have please? thanks in advance!
this is what i found, i dont know which way they were supposed to be read from, but i found this:
M090L9VP
can someone help me find out what i have please? thanks in advance!
Le Mans Master
Joined: Aug 2003
Posts: 7,720
Likes: 12
From: Chattanooga TN
You need the casting number that is on the pad drivers side behind the distributor. A casting date would also be helpful. Also the engine code in the front passenger side above the water pump, next to the S/N would be helpful.
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
...M090L9VP...
You will find two stampings on the pad at the front of the right head. You may have to clean off some road gook to see them, but they should be there. One is the engine identification stamp and the other contains the VIN derivative of the vehicle this engine was originally installed in. Jot down both and post them here.
All Corvette small blocks were assembled at Flint, Michigan and are coded V; big blocks were assembled at Tonawanda, New York and are coded T.
Thread Starter
Racer
Joined: Jul 2004
Posts: 400
Likes: 1
From: California
1979 corvette A/T, 350 c.i.d red....lol i dont think color matters now that i think of it, but red seems to make it go faster. 
the #'s came from the Passenger side on that pad on the front of the block. ill try to grab the other #'s next to the Distributor...didnt know there were some behind there. 
some of the #'s i got off the block seemed like they werent really deep when they stamped them, but to the best of my ability they are correct. are they split up maybe into 2 #'s? do these #'s tell anything about what kinda hp i have or anything, im really new at this.
the #'s came from the Passenger side on that pad on the front of the block. ill try to grab the other #'s next to the Distributor...didnt know there were some behind there. some of the #'s i got off the block seemed like they werent really deep when they stamped them, but to the best of my ability they are correct. are they split up maybe into 2 #'s? do these #'s tell anything about what kinda hp i have or anything, im really new at this.
Melting Slicks
Joined: Mar 2004
Posts: 3,468
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From: Lake Ozark, MO
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Originally Posted by EVIL_GRIM
1979 corvette ...the #'s came from the Passenger side on that pad on the front of the block....
Second stamping will have smaller characters than the engine stamp and will be 19S4xxxxx with the Xs standing for the consecutive unit number of the VIN. Example: 19S412345 1 for Corvette, 9 for model year (79), S for the St. Louis plant code, 4 for the car line series for 1979 (Corvette) and 12345 for the VIN.
Your sample of M090L9VP has the correct number of characters, but they aren't Corvette codes.
Thread Starter
Racer
Joined: Jul 2004
Posts: 400
Likes: 1
From: California
so is it possible that the motor isnt the correct one for my vette and it might be from something else? if so how can i tell with the #'s i pulled? i looked real hard a second time and thats all the #'s i have in the front of the block, ill try the distributor next. thanks for your help guys. 
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Team Owner
Joined: Jun 2000
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From: Southbound
Cruise-In II Veteran
Originally Posted by EVIL_GRIM
so is it possible that the motor isnt the correct one for my vette and it might be from something else?...
.. if so how can i tell with the #'s i pulled?...
...ill try the distributor next...
What's the VIN for your car?
Team Owner
Joined: Jun 2000
Posts: 38,923
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From: Southbound
Cruise-In II Veteran
Originally Posted by Mike Ward
Most engines that start with an 'M' came from GM's plant in Mexico. Yours is probably a target master crate engine.
Aha! Mexico! M090L9VP is beginning to make a little sense.
Account disabled by user request 5 Jan 09
Joined: Jan 2005
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M090L9VP
Can you check this number one more time ... ???
M = Mexico
the next 4 digits should be all numbers,
like maybe 0909 ... ???
these numbers denote 2 digit month and 2 digit day
VP = there is no VP .. could it be UP ??
If yes, it's a truck engine:
1969 307 Truck 200hp RPO L-14
Manual Trans 2-Brl Carb 4-WD
That 090L is throwing everything off ... if you're not sure,
can you post a picture of the pad ???
Can you check this number one more time ... ???
M = Mexico
the next 4 digits should be all numbers,
like maybe 0909 ... ???
these numbers denote 2 digit month and 2 digit day
VP = there is no VP .. could it be UP ??
If yes, it's a truck engine:
1969 307 Truck 200hp RPO L-14
Manual Trans 2-Brl Carb 4-WD
That 090L is throwing everything off ... if you're not sure,
can you post a picture of the pad ???
