Need help finding out what big block i have as well as any other information that's available for it. This is my first big block. On the back of the block where most casting number are located all that is there is GM5.
Just in front of the passenger side head is CE3325884 4. Any help is appreciate the help

 

What year and make is your Chevy?

 

the block casting number is usually located on a ledge found at the rear of the block and has 6 to 8 digits. This ledge is located near the bellhousing. please recheck your casting no.

 

Welcome to the forum. Ask you question in the General Tech section of the forum where you will get more views.

 

I'm not sure the year or what it came out of. It's now in a 91 chevy truck

 

Fuel injection or Carburetor?

 

Carburetor. 650 DP mechanical secondary

 

you can check the make and model of vehicle by VIN

 

I am pretty sure you have the 454 cubic inch or 7.4 liter GM engine. It's an okay motor, but not like the Chevrolet 396 cubic inch large block motor of days gone bye. If I were a younger man, I'd beef up a large block 366 (6.0 liter) cubic inch engine and shoehorn it into my 98' K-1500.

That GM engine had torque like you wouldn't believe, as a stock medium-duty truck engine. I know, as my father had one in his 1969 Chevrolet C-60, with a two-speed electrical-shift rear axle and a heavy-duty Borg-Warner 5-Speed manual transmission. What a great motor that was.

I'd have to beef up the rear axle, of course, else I'd not be able to use it without damaging the rear axle spider-gears, whatsoever, upon take-off from a stop-light, or stop-sign, at all.