jonnyricer2

iTrader: (9)

Hi guys what is.the minimum thickness of v3 sti heads?? As how much can be taken off the face after refacing until head is not usable etc

Cheers

alcazar

iTrader: (2)

First question is why do you want to do it? Does it NEED done? Who says so?

The problem with skimming heads, especially on a turbo car is that you will increase the compression ratio, unless you source and use thicker gaskets.

Increase the cr too much, it'll go bang, trust me.

jonnyricer2

iTrader: (9)

Hi there I have found some heads for.sale and have been on rebuilt engine just did nt want to buy
Them and find I could nt use them because they have been refaced to much.
And I'll need to reface them on my rebuild.

merlin24

iTrader: (1)

Standard head height is 127.50mm.
Regrind limit 0.3mm.


Mick

jonnyricer2

iTrader: (9)

Cheers merlin is there a minimum head height at all??

alcazar

iTrader: (2)

From the above figures, I make it 127.2mm.

You repeat that on your build "I'll need to reface them".
But you don't say why?

jonnyricer2

iTrader: (9)

Because I always get a reface when doing head gaskets with aluminum heads due to warping I don't want any problems so I want to do it properly first time.cheers

alcazar

iTrader: (2)

OK............

But unless you go for the thicker gaskets, you are buying trouble.

Why not just have them checked for flat?