Post by
480sx »
https://forums.nicoclub.com/480sx-u50548.html
Fri May 15, 2009 10:35 am
First of all, your crank, pistons and bores are in perfect shape. It would be worth pulling the motor and rebuilding it for sure. By 200k, your bearings are going to be worn to some degree, along with a long list of other things that will be worn.
I would re-ring it with OEM stock bore rings, and get a machine shop to hot tank and hone the block. Id also get a machine shop to redo your head and get it back to FSM spec.
In addition, all your seals, water pump, full timing chain set, things of that nature should be changed if they havnt already. You might want to replace your clutch while your at it.
If you do all this its quite possible to get another 200k out of the motor.
Granted, none of this is really needed. Eventually though, somethings going to fail. Be it you valve seals, or something as bad as a timing chain somethings going to give in the 200k+ range usually. Its preventative maintenance, an investment into the car really.