I have a TR&D forged engine bottom end with cracked block, plus a spare standard block.
I bought the whole lot as a complete engine, gearbox & turbo which was removed from car with overheating problems but otherwise OK. Suspected cracked block (confirmed). I have used the head on another engine as it already had 264 cams fitted & turbo is for sale separately.

Spec is (from TR&D invoice):

Custom J&E 86.5mm forged pistons 8.5:1CR
ST205 toyota oil pump
ST205 toyota oil pressure regulator
Clevite 77 ST205 Race bearings (main, big end & thrust)