Im building the 383 described in my sig. Im a little concerned with how much piston to cylinder wall clearence i need. The Pistons are JE/SRP forged from combination Motorsports. The paper in the box says to go .0025-.0035 for N/A applications but more for nitrous and blower. How much clearence are you guys with nitrous running? I was thinkin .004? I probably wont ever go more than a 150 shot. Thanks in advance.

 

I would like to know as well.

 

Can someone please give me some input on this. My motor is being worked on now. Would .004 be too much? Thanks

 

No, but better idea, is to run the ? past tech engineer at SRP for somethin' more official.

 

If you're going to stick to a 150 shot then you can live with the recommended N/A specs. Factory stock engines live (relatively) long lives with that amount of nitrous.