I'm having trouble looking up my engine. I'm using this website.

http://www.nastyz28.com/chevy-engine...ngs.php#suffix

I can't find the suffix any where on there. It's TUZ. The full code is VO531TUZ. Can anyone help me with this? I would appreciate it greatly.

 

What is the engine in? Is it original? What year is the vehicle? If you can get me the info id be more than happy to help you find out what your engine is.

 

It's in an 86 Iroc Z. I have no idea if it is original. I got the car for cheap around a month ago and want to do some work to it. The person I got it from said that the guy who owned it before him put a "360ci" in it. There are a few stickers on the car that say "360ci".

 

Well it obviously isn't stock. You'll have to get under the car and look for some casting numbers on the block. This site should explain it all...

www.mortec.com

 

I've found out what it is. It's a 350 out of a 73 c10 to 2500 with smogger heads.

 

Since this is a post that has the same question i have i will just ask here...how do i know what my engine is(TBI, EFI,TPI and so on) I have a 1990 rs 305

 

whats the vin #? whats the engine look like? post a pic.

 

If it's stock it would be a TBI.

 

It should be a stock 305 TBI....aka the L03....the engine everyone hates and talke dirt about, I like it though, lt is durable and responds well to engine mods.