Looking for a cheap alternative to having my zvh bored out to 86mm and paying for forged pistons, my car is currently running st170 internals, i know focus rs pistons are a direct replacement, but how good ar ethese gonna be car is used evryday so reliability is key more than power as im not chasing figures car is currently around 160bhp.
http://cgi.ebay.co.uk/FORD-RS-FOCUS-...item3a561c4e8e

 

Standard Mk Focus RS pistons are very strong, 350bhp+ isnt a prop for them. Thats assuming everything is setup properly of course.

 

i have a 2.1 bottom end for sale , new c20let pistons , arp bolts , new bearings Ł400

 

im running FRS pistons and rods at 221whp.