I am running a md321t and supporting mods to achieve 400bhp, how much roughly would it cost to forge the bottom end?

 

anywhere from 2.5k-4k depending how far you go spec wise

 

Perfect for your needs, ive built 100's of these-
http://www.ebay.co.uk/itm/Subaru-Imp...e=STRK:MESE:IT

 

Is that vat included? How much roughly would it cost to fit?

 

wms also it that on an exchange basis?

 

Thats all inclusive outright sale for the short engine only. I'm not doing any fitting due to workload and a bad back. But Richard Edwards may be able to quote for the fitting-
https://www.facebook.com/search/top/...formance%20cyf

 

What are these rated to say with a 14mm head stud conversion

 

This is really meant to be a 450bhp spec with 11mm studs. I would build it differntly for more power, I would use the Mahle 2618 pistons and then 500 or a bit over would be ok with 11mm studs. For well over 500 I would only use a closed deck block and 14mm studs. The same spec in a cdb with 14mm studs is more like £4K inc the stud kit. Ive run my rods to 750bhp with no problems at all.