help with engine
Thread Starter
3rd Gear
Joined: Oct 2016
Posts: 3
Likes: 0
help with engine
I just bought a new engine 427
the number on back is 3955270 and the vin number in the front is TO3497BB the heads are alum 3946074 and the intake is alum 3933163. What is the engine and what did it go in. Please
thanks
the number on back is 3955270 and the vin number in the front is TO3497BB the heads are alum 3946074 and the intake is alum 3933163. What is the engine and what did it go in. Please
thanks
Team Owner
Joined: May 2005
Posts: 31,497
Likes: 1,313
From: Huntsville AL
Pictures of the engine pad will help a lot.
TO3497BB doesn't make any sense.
The block casting number and head casting numbers work for 1969 vintage parts.
The intake manifold looks like if could be a 1968 / 1969 vintage part.
Please post a picture of the front engine pad.
TO3497BB doesn't make any sense.
The block casting number and head casting numbers work for 1969 vintage parts.
The intake manifold looks like if could be a 1968 / 1969 vintage part.
Please post a picture of the front engine pad.
Thread Starter
3rd Gear
Joined: Oct 2016
Posts: 3
Likes: 0
It seems the BB is the concern. I have tried to research the internet and can not fine this code. The block is for sure a 69 HP block according to all the numbers and the heads and intake is correct for a L88 but the front is a problem
thanks for your help.
Team Owner
Joined: May 2005
Posts: 31,497
Likes: 1,313
From: Huntsville AL
I will but it is very clear TO3497BB
It seems the BB is the concern. I have tried to research the internet and can not fine this code. The block is for sure a 69 HP block according to all the numbers and the heads and intake is correct for a L88 but the front is a problem
thanks for your help.
It seems the BB is the concern. I have tried to research the internet and can not fine this code. The block is for sure a 69 HP block according to all the numbers and the heads and intake is correct for a L88 but the front is a problem
thanks for your help.
I suspect that you engine code stamp is 7BB. A number of marine engines used a engine suffix code that started with a digit.
Another possibility is a rebuilder's stamp.
Seeing the stamp will help make that determination.
Thread Starter
3rd Gear
Joined: Oct 2016
Posts: 3
Likes: 0
What the picture will tell us is the font and style of the stamping. Once we see the stamp, we can pretty quickly determine if this is a factory stamping or an aftermarket stamping.
I suspect that you engine code stamp is 7BB. A number of marine engines used a engine suffix code that started with a digit.
Another possibility is a rebuilder's stamp.
Seeing the stamp will help make that determination.
I suspect that you engine code stamp is 7BB. A number of marine engines used a engine suffix code that started with a digit.
Another possibility is a rebuilder's stamp.
Seeing the stamp will help make that determination.
Race Director
Joined: Oct 2000
Posts: 12,663
Likes: 3,118
From: Shamong, NJ
I will but it is very clear TO3497BB
It seems the BB is the concern. I have tried to research the internet and can not fine this code. The block is for sure a 69 HP block according to all the numbers and the heads and intake is correct for a L88 but the front is a problem
thanks for your help.
It seems the BB is the concern. I have tried to research the internet and can not fine this code. The block is for sure a 69 HP block according to all the numbers and the heads and intake is correct for a L88 but the front is a problem
thanks for your help.
The problem with the engine stamp, goes beyond the "BB". There's to many numbers in the stamp.
The "163" intake you have, was not used on the L-88. 68-69 L-88's used the "198" intake, and 67's used the "069". The "163" intake was used on 68-69 396/375's in Camaro's, Chevelle's and Nova's, as well as the 69 427 COPO Camaro's.
What the picture will tell us is the font and style of the stamping. Once we see the stamp, we can pretty quickly determine if this is a factory stamping or an aftermarket stamping.
I suspect that you engine code stamp is 7BB. A number of marine engines used a engine suffix code that started with a digit.
Another possibility is a rebuilder's stamp.
Seeing the stamp will help make that determination.
I suspect that you engine code stamp is 7BB. A number of marine engines used a engine suffix code that started with a digit.
Another possibility is a rebuilder's stamp.
Seeing the stamp will help make that determination.
A look at the stamping, might help identify what you have. Big blocks made for marine applications, had a 3 digit suffix code, made up of a number followed by 2 letters. Unfortunately, I can't find any listing for a "7BB" marine suffix code. The vast majority of marine big block suffix codes had an "X" as the second digit, with "F" and "H" as the other most common second digits. There were no marine big blocks that had a "B" as the second digit in the suffix code.
Team Owner
Joined: May 2005
Posts: 31,497
Likes: 1,313
From: Huntsville AL
Let dissect what we have here:
TO3497BB
T = Tonowanda (possibly)
O = is this a letter 'O' or a digit zero. let's assume digit zero
3 = March (month of assembly)
49 = oops, there are not 49 days in a month, any month
7BB = suffix code ???
Look at it another way
T = Tonowanda (possibly)
O = is this a letter 'O' or a digit zero. let's assume letter 'O' = ???
34 = oops, no month of 34
97 = oops, there are not 97 days in a month, any month
BB = suffix code ???
Seriously, a picture of this engine pad will help a lot.
TO3497BB
T = Tonowanda (possibly)
O = is this a letter 'O' or a digit zero. let's assume digit zero
3 = March (month of assembly)
49 = oops, there are not 49 days in a month, any month
7BB = suffix code ???
Look at it another way
T = Tonowanda (possibly)
O = is this a letter 'O' or a digit zero. let's assume letter 'O' = ???
34 = oops, no month of 34
97 = oops, there are not 97 days in a month, any month
BB = suffix code ???
Seriously, a picture of this engine pad will help a lot.
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