gazzawrx

iTrader: (11)

\Hello all, what options are avaliable to me in terms of engine builds for a scdb sti8 lump, i've done a bit of research and it seems i can use either an sti9 ej20 nitrided crank or a longer stroke 79mm ej25 crank.

I'm going to be buying a brank new crank and 93mm forged pistons due to mine being shot and i already have a set of forged ej20 Manley rods sitting here waiting to be fitted, now before i go and buy any bits i'd like to see what options are avaliable to me.

I wouldn't mind going 2.1, is it just a case of fitting a 79mm ej25 crank and 93mm pistons to achieve this? if so does anyone know what size head gaskets i'd need to fit to use this setup using a 8.5:1 comp ratio?

What proven builds have people done and what was used in the build?

ditchmyster

iTrader: (7)

Speak to Mark at lateral performance.

toneh

iTrader: (1)

Or you , that's where I'm heading,

ditchmyster

iTrader: (7)

No worries mate, it's easy, you scratch mine, i'll scratch yours.

gazzawrx

iTrader: (11)

will he give advice if i'm building it myself, instead of getting lateral to build it?

ditchmyster

iTrader: (7)

Yes, he supplies parts to a lot of self builders and can give you the various options re price and potential bhp for each application.

KAS35RSTI

iTrader: (73)

You can use 79mm crank with longer rods, or standard rod size with stroker pistons. The block will also need the rear thrust conversion to take the crank.

MOTORS S GT

iTrader: (2)

It won't need a rear thrust conversion if its a V8 semi closed deck block.

gazzawrx

iTrader: (11)

cool, i'll give him a try then thanks

gazzawrx

iTrader: (11)

cool, well the manley rods i have are standard size so i'll need stroker pistons then. the block is a rear thrust scdb so no probs there

gazzawrx

iTrader: (11)

cheers mate

KAS35RSTI

iTrader: (73)

I was assuming he would be using a CDB.