hi again,
on my other project i am aiming for well over 400bhp and need to upgrade my heads/cams, which ones off what car will cope and fit on the 94 cdb, cheers phil.

 

STi 3/4 heads and cams will do you for around that level, we can supply them pre chambered for your 2.5 engine and gas flowed should you wish.

 

mmm sti 3/4, ok, what sort of price can you do them for a 2L not 2.5 but gas flowed + cams? please be gentle. also do they fit straight on and the inlet and exhaust manifolds fit?

 

I'm interested in a high-flow heads for a 2.0L.

As ww said, how much for those STi v.3/4 ones?

 

any price yet?

 

They will be using CNC heads for the work, so not cheap fellas

CNC Heads - HOME

Banny

 

Blimey, you're not wrong.

What are std unfettled STi v.3/4 heads (I'm thinking cleand up 2nd hand ones) good for, bhp-wise?

Do the v.3/4 heads have the same bolt patterns to suit v.1/2 inlet manifolds and headers.

 

no sorry matey i believe v3 onwards has the later style mainifolds i not to sure whether the exhaust is different though

My friend has got a pair of p1 heads, inlet and exhaust manifolds! I will find out if he wants to get rid if you want?

 

V3/4 is wat you want.

And yes same bolt pattern as yours. V1-4 are same. V5 on changed to the staggered bolt types. The P1 is v5 so won't fit.

I've a set of V3 STi heads.. £400 plus p&p

 

my bad

 

Thought that was the case - excellent news.

Just doing 'homework' at the mo, so don't need heads now. May get some later - thanks anyway.

What are they good for, bhp-wise?

 

They will max out at 500hp, obviously with supporting mods.

 

GET IN! That's way over what I plan to do! Ta for that.

 

std heads (and cams) for me at 550 bhp ...

maybe get a bit more power if I upgraded ??

 

Yours are currently Hawkeye STi ones aren't they?

 

yes - UK sti heads

 

Does the UK Hawk STi have the 2.5 instead of JDM's 2.0L - or is that only the MY09 Hatch (can't remember)? If so, does this mean the UK Hawk has 'better' heads than its JDM counterpart?

 

The UK Hawkeye is 2.5.

It has milder cams than the 2.0L JDM and are certainly not great from a porting/gas flow point of view. Proper heads would be an advantage.

 

Do you reckon you'll get a set of those CNC heads, or similar, then?

 

the hawk eye 2.5 uk sti is running the exact same heads and cams as 05/06 jdm sti foresters.