Hi all!

I'm kind of new to the site and not the most mechanically minded (so please bear with me!), but I'm going to look at a 1999 Impreza P1 tomorrow. It's parked at my Father's friends garage and does look quite smart to be fair. We were considering it as a possible project in our spare time.

I think it may have the original ECU, but needs an engine and engine harness.

My Father is a mechanic who will be doing a lot of the work, but he has set me a bit of a challenge of doing research on engines.

What I was wondering is, what engine types can be put into this particular model?

Is it best to have a P1 engine specifically? Or will a STI V4, Type R / Type RA engine also fit? Are they all roughly the same power / spec?

Many thanks, any help would be greatly appreciated! And again, please pardon my ignorance!

Bill.

 

The P1 engine is the same as a V5 sti

 

The engines go in phases on the classics, phase 1 were the 1993-1996, phase 1.5 were the 1997-1998 and the phase 2 are the 1999-2000 engines.
As said, the P1 runs the same engine as the version 5/6 STI (its based on a version 5 car so pretty much everything from a 5 is interchangable), not worth trying to fit an older phase engine to these tbh.