Hi,

I bought a 1963 Chevy SWB p/u. I am tryin to figure out if it's a 350, 327 or what? What I am almost positive of, is that it's not the original 283. The little help I got from a mechanic is thats its a 327 made in 67 or 68. But, he determined that from the fuel pump. I have been searching the internet on trying to find the serial number that is on the engine, but no luck so far. The engine serial number starts out with C5U. I could find nothing anywhere with the first the characters C5U. If anyone could help me out with any type of info, I would appreciate it.

Semper Fi

[ March 22, 2002: Message edited by: Kiknazz101 ]</p>

I believe you can identify the stroke length by looking at the flange on the crank.

Can you supply the casting number off the back of the block, this will identify a lot.
The casting numbers of the heads wil give you its specs

Thanks for the reply. I got the C5U number off the block on the passenger side next to the water pump. I thought this was the serial number? Didn't know there were a second set of numbers on the back of teh block. I willl check it out tommorrow. Thanks again.

Here are a few sites to check out Chevy engine parts.
www.planet.net.au/~alexst/chev-spec.html
www.mortec.com/
www.nastyz28.com/bbcmenu.html (BIG BLOCK)
<a href="http://www.planet.net.au/~alexst/chev-spec.html]http://www.planet.net.au/~alexst/chev-spec.html[/URL]

Hope this helps you.

__________________
Luv the smell of NITRO in the morning.

I could not find any info on C5U, But CSU is a 400 from a 74 chevelle. If it,s a 400, the number cast into the back block over the bellhousing will be 3030817, 330817, or 3951509. Good luck

There are a few books out that will identify the small block numbers and break them down to year and size. Look in a good book store in the automotive section...stovebolt