Hi everyone. I'm replacing the 176k mile bottom end of my '87 corvette with the bottom end of an '88 IROC becuase of a spun bearing. This is sort of a "patch" until I complete a new 383 during the winter.

The 'donor' engine has 92k miles on it and runs smooth. What would you consider a 'safe' level of Nitrous to run on this bottom end? I am planning on going with a wet kit from NX adjustable from 35-150 that would only be used against opponents that require it and at the track probably every other run. I as of this time plan on jetting it for 100.

The car makes 322rwhp & 362 ft/lb right now N/A and should be around 335rwhp & 380 ft/lb once the ECM is tuned properly.

Thank you for your time and experience.

 

100 SHould be a safe level. If you really want to be safe run 50 and be sure to pull the timing back the appropriate amount. About 2 degrees per 50 hp shot.