which brand better?

[Kitti]

now am will order the new the valve lifter from rockAuto parts,they have DNJ and Sealed Power.
who are best?
and how about the pistons and ring from them?
i need any information for choose any part to overhaul the engine. mine approx. 220 K km.

best regards
KT

 

[Street Surgeon]

Of the two I would choose sealed power.

 

[EMX5636]

I will almost always pick O.E. Mitsu for engine parts. Topline Lifters are good, I don't trust their front (oil pump) covers. Sealed Power is a big name brand, but I've never used it in a 4G63.

 

[EHmotorsports]

If you are going non forged for pistions I would use NPR pistons and rings. Yellow box not the china made ones.

 

[mitsuturbo]

I rebuilt at least 6 or 7 engines with parts from DNJ, aka Rock Products (NOT the same as rockauto.com, their address is rockprod.com). Neither I or any of my "customers" ever had one of their parts fail, until i used one of their oil pumps on my own car. Their Pistons are good. Bearings are good. Lifters are good. Gaskets were okay, but not as nice as OEM, of course. Seals were good. Everything seemed to meet standards, and for about half the cost (or less) i'd have paid anyone else.

 

[Kitti]

thank you for any information. /ubbthreads/images/graemlins/worthy.gif
in thailand OEM lifter is $50/pice.
how about used parts for japan?
used cylinder head from VR4 or RVR here selling around $187.50 for least mileage.
if they can separate the lifter to sales.
how can i check the good one? use hard pin push inside hold and what the feeling for good parts?