quick question,

can u re-grind and put a new set of bearings in a sti 7/8 block and it will be as new?
as i been told they dont like to b re ground, and wud require a new crank etc?

wat is a realistic price for a re-grind (if worth doing) and a set of acl bearing?

is that then classed as a bottom end rebuild??

cheers
cj

 

Do a search - regrind a definite no no.

 

so would have to be a new crank then,

so with a new crank, a set of bearings it should be as good as new (ish)

worth changing rings at the same time? block done 60k

 

IMHO it depends on what the condition of it is. Best would be to get the bores checked/measured as well as the rings, then you'll know what needs replacing. Might need pistons too for example, depending on what's happened to necessitate the rebuild.

For example - my old 2.0l had poor compression at 50k miles and I was advised that I definitely needed new rings but the pistons looked OK.

Since I also had cracked heads I binned the lot and had a new one built . When they fully dismantled the old engine the pistons showed a lot of wear on the skirts and much of the teflon (I think it's teflon) coating was worn. So it would have needed new pistons too.

But the bearings were all fine.

I know this doesn't really help much - but I think my message is "replace what is actually worn or damaged"

 

think im going to leave it and get a closed deck, machine the crank and slap a new crank, some manley rods, pistons, rings, rcm rotated turbo, 850cc injectors, fuel pump a simtek and go from there lol

 

A sound plan

 

I think you will find that if you keep within the factory subaru power levels you may get away with a regrind and polish. (this is even covered in the subaru service manual).

This is definitely not reccommended on any of the higher performance engines though....

Must say i prefer your latest plan with the forged CDB definitely a good route to go.