350 Motor differences

[manimal]

Originally Posted by sntrym95

the 2500 had a beefed up motor compared to the 1500.

The 2500 has 4 bolt mains, forged crank, hypereutectic pistons where the 1500 has 2 bolt mains, cast crank, and cast pistons. Compression and cam specs are essentially the same. You can swap it in but know that it's designed for lighter use.

Not a true statement. Not trying to be a d*ck, but I have pulled SEVERAL 350's from GMT400 2500's and most have been 2 bolt cast crank motors, but to be sure, pull the pan. Now if you get a 3500, then YES it will most likely be a 4blt block, but still no guarantee it will have a forged crank.