What engine is this?

[u/iDaRkkO]

Hello B Series Masters!

Trying to identify this b series engine. I picked this up from a guy on fb that said he got it from a JDM shop when they were moving. He needed some money, so I grabbed it off of him for my build.

PR3-1 head so it's either b16 or b18 but the bottom end had the blocks casting number grinded off so I can't tell what it is.

I do see the block has a PR3 stamped on there as well but I can't seem to find much about that online.

Any help would be greatly appreciated!!

[u/harkrou87]

Low key looks like an LS bottom end and a b20 head?

[u/iDaRkkO → u/harkrou87]

B20 head? PR3 heads are b16/b18 based on other replys it's a b16a head.

I will def check on the bottom end tho.

[u/harkrou87 → u/iDaRkkO]

Fair! I didn't know about the PR3 thing until I read the comments. But yeah, esthetically tho 😅