I'm trying to find a replacement for my engine so I can take my s5 engine out and let it chill until I can rebuild it.
I found a S4 keg engine but from what I've read it would cost a lot to get it/running properly.
Anyone want to help and tell me that it will fit perfectly and run great... Since my s5 has no rear rotor compression I figure it won't be a step down really.

 

Yeah, as long as it's the same type (n/a vs TII). You can put all your S5 manifolds and electronics on the S4 block and run it like normal. I think there are some very minor differences, but nothing major.

 

Okay thanks a lot.
I had read somewhere that they didn't bolt up right and you had to fabricate some things... which I can't do.
If they fit fine I guess I'll buy this one so I can keep my fc.