25/30 long engine, had a light knock, had the sump pulled by an engine builder who said the main and big end bearings were ok, crank was measured and found to be fine, stuck a camera down the spark plug holes and said nothing looks to have been hitting in there, would need to be stripped down completely to find exactly what was/is wrong and i dont want to put that much money into an engine im never using again. head was reconditioned when the engine was built RB30 S2 block R33 RB25 head, VCT retained with external oil supply mod.
R33 RB25 mounts with NISMO engine mounts performance valve springs 86.5mm arias pistons with OEM nissan rings 9.3:1 CR grub screwed and extended oil pump drive on crank ARP head and main studs precision H beam rods with ARP bolts ASR 6.5L extended and gated sump with extra -10 drains welded on N1 oil pump standard 26 water pump stock cams stock cam gears stock valves sub 5000km old genuine nissan flywheel/crank bolts (can include stock flywheel if you want) cometic metal head gasket. block modified for aftermarket exhaust manifold clearance and a head drain/breather on the exhaust side. has relocated tensioner to above water pump (from memory is running twin tensioners instead of an idler and a tensioner) does not include a balancer
have receipts for most parts $3500