J30 engine Swap FAQ

[budget300zx]

following up on installing a j30 engine into my 300zx

ill just post a list of the things that are different and need swapped from one motor to the next.

Heater core coolant tubes (bent at different angles)
Oil filter Mount (not necessary for N/A. if your building it for a tt it will need done)
Oil pressure sending unit (different connection)
exhaust manifolds (come out at different angles)
valve covers (different intake hose routing)
Oil Pan
oil pickup tube
Dip stick (in order to have a correctly working dipstick you need to drill a hole through the block casting as it is plugged in the j30)****
water pump and pulley (they are made different if you use a j30 water pump use that pulley, or 300zx pump with 300zx pulley)
flywheel (use your existing 300zx bolts or get new ones) dont forget the pilot bear if you are using a manual transmission the j30 is only auto
if you use the j30 upper plenum make sure you keep the j30 egr setup and balance tube otherwise use all from 300zx (egr is at a different angle balance tube has different mounts)
motor mounts (they are completely different)
transmission blocking plates from the 300zx will need to be used
I would also suggest using all the accessory mounts from the 300zx engine, as some may be different on the j30 (i only have an alternator and water pump to run so i cant say for certain if any are different)


*******if you use the j30 dipstick on the passenger side it can not be left in as it will interfere and possibly damage the crank with the 300zx pan. it is also inaccurate as it makes contact with the oil pan.***********


will try and get some pics of the block where it needs drilled up soon as it is the only major dilemma.

[budget300zx]

j30 Engine, 300zx plenum, valve covers, and shaved timing covers


Oil dipstick hole (i found this after the motor was in Will pull the header and fix this when i do the driveshaft)


Oil filter mount (I liked the j30 setup and kept it)


Heater core tubes



Plenums (notice egr position is clocked 15degrees less)
Please note these are found through a google search not mine. credit to LOWFATZ & globay3