hi i just bought a closed deck block which was removed from a 95 impreza, are all engine blocks the same for classics or is there differences?

and can anyone tell me the difference between a sti inlet manifold and a wrx? pics of the 2 would be great if possible

i plan to forge the cdb then get some better heads than my wrx heads then possible fit a sti inlet manifold.

but am not sure what heads will fit this block and what inlet will fit the heads i choose etc etc.

and after all that i need it to still plug and play with my existing wiring loom

 

Have a look at my thread on Projects, it might help 'DIY Budget Rebuild'

 

that handy to know

how do i know what version i have? its a 95 wrx import.

 

95 is a version 2.

 

so does that mean a v2 sti heads and inlet would fit this block and fit my wiring loom?

 

Anything up to version 4 heads will fit this block without needing to change the inlet manifold.

 

well i'd like to fit a sti inlet manifold too, so can i fit heads and inlet from engines upto v4 and still use the existing wiring loom?

 

You will need to keep your inlet manifold and wiring harness, as the version 3 inlet manifolds has alot of differences. Such as the throttle position sensor works in reverse reading no current when fully open.

 

I have a set of sti type RA version 2 heads available

 

im fitting a cdb into my uk turo and the engine is out of a 195 sti ra , im using my original inletmanifold and its a straight swap .

 

ok si i can fit any version of sti heads upto v4 but will need to reuse my inlet manifold that right?

 

i got some ported and polished sti2's for sale

 

adzer that would be the easiest way. There aint any gains to be had by going for an STI manifold.

 

but mine is a version 2 so could i not change the inlet?
not that i'm gonna waste money if it has no gain over the wrx inlet i'm just curious now

 

Your Version 2 Manifold will bolt onto any heads up to Version 4.

 

sorry i ment would a sti inlet not fit using the existing v2 wrx loom?

 

dont you only have to change heads if your running vvti ?

 

There really isn't any reason to switch to an STI manifold.

Take you CDB fit any heads up to version 4 keep your existing manifold loom etc job done.

 

yeah i will more than likely just paint my wrx inlet red or maybe different colour but i'm just curious to know if any sti inlet would fit the v2 wrx loom?

(just trying to get knowledge of these engines)

 

You could fit it but it comes with it problems. Am early Sti v1 & v2 would fit. But its the same manifold you already have.

 

The v1 and 2 inlet side hardware is different from the v3/4, stuff like idle valve, coil position etc. It's is totally not worth the hassle of even thinking about changing your inlet manifold, absolutely pointless. If you want an STi manifold, just paint your WRX one red, and you have an STi manifold. In fact some of the early Sti manifolds weren't even painted red, they were identical to the WRX.

So:
1. Keep your manifold and paint it red if you want.
2. Fit any heads up to version 4 (MY98)
3. Use your CDB

 

block arrived today with a few extras bolted to it which i didn't expect to get

£200 for a cdb with all internals, alt, ac pump, crank sensor, cam sensor etc is that a good price?

have a set of sti v2 heads in the pipeline if anyone can tell me they are real sti heads (check my other thread )

just gonna reuse the inlet i have too.

just need to buy my forged goodies and start the build

 

can anyone tell me how i can identify the pistons that i have fitted to this block and how much would i get if i sell them depending if they are sti forged one or the wrx cast ones?

cheers guys

 

doesnt matter as both are worth **** all

 

honestly??? i was hoping to sell all my unwanted parts

 

if your happy with the price then its a good price (I sold a complete closed deck block with heads and ancilleries and spare heads for just over £100 btw )

sti2 heads from what I hyave read arent the greatest, best bet would be to find some v3 sti heads as I believe they offer a good aggressive cam profile and breath well

 

u could of got well more for your engine i would of thought, some one on here was trying to sell me just the 2 halfs of the casing for £200!!!!

v2 sti heads that are ported and polished delivered to my door for £220 i'd of thought that was a good price despite the fact there is better heads out there, i dont have deep pockets lol