Look on the driver's side down between the middle exhaust ports. It's on a part of the block thats sticking out the side facing up. Once you find it, you want the 1st 2 numbers and the letter. Then look it up on one of the engine lists online. Most of them are not fully comprehensive so you might have to search around to find it. Here is a start:
Pic is of mine so you know what you're looking for.