Originally Posted by
big_wasa
I’ve built a few.
My current one is Focus Rs based and good for a reliable 350 bhp +
low miles Blacktop. £250
Rs pistons £300
forged rods with Arp bolts £350+
Piper valve springs £200
Gaskets, bolts, bearings, seals £250
Machine work £100
pretty much the same as what i have, except that my head is ported and i've balanced the lot. it is running a lovely reliable 350ish bhp and will easily do more