396 id numbers

[pontiholic]

I have a 396 that I would lkie to know what it goes to #10509xe thank's

[engineer]

looked at the car engine suffix codes which are two or three letters, but no factory installed blocks start with X as the first letter. There was an EX and other codes, just no X_. anyway, there are lots of codes on chevies, so get us a block casting no., date code, assembly code, engine suffix codes, and I can help you out.

[pontiholic]

I looked again and on the pass front side it reads 10509xe the i could be a backwards 7 or a T. on back 3935440 , conv2 and something i can't read . Wand to sell to buy parts for my gto's but don't know who much it's worth if anything. Thanks so much for your help.

[72Ventura]

3935440....396.......68-69...2 or 4 bolt


The other code is T0509??, The motor is from the Tonawanda motor factory built May 9th. You have to look further for the exact year. There is a block casting date usually on the back ledge passenger side and will look like D 12 9 for April 9, 1969. It will be some date before the build date obviously. The last two could be CE which means it is a Crate Engine or warranty replacement engine.

[Ron Landis]

should have a book called "GM by the numbers" covering various years of parts. Ron

[pontiholic]

The xe is for sure it's eays to read up front. I think I'll load it up on a truck and take it to a chevy dealer and see if they can figure it out thank's fo all the help.

[johnta1]

It's a 1968 396 for a truck. 310 HP rating.

[pontiholic]

Johnta1, Thank's now I know what I'm dealing with. Do you have any idea what it's worth?

[Malibu]

The 5440 blocks were also used in the base 325HP Chevelles in 68. Even though they were used in pick-ups there are still considered pass motors. If it's a core then $500 or less if a good stock runner maybe $1000 is my guess.

[engineer]

truck blocks have the word 'truck' cast into them. lowers the value when in a car even if block casting no. was correct.