next? what heads for big bhp?
 

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.
:thumb:

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 :eek:

CNC Heads - HOME

Banny

Blimey, you're not wrong. :eek:

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:wonder:

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?:thumb:

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:Whatever_:wonder:

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! :D That's way over what I plan to do! Ta for that. :thumb:

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? :wonder:

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.