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Alan Roehrich · 01-01-2017, 02:15 PM

No, it is not legal to cut the valve reliefs on pistons in NHRA Stock Eliminator.

I would probably consider 0.060" piston to valve clearance on the exhaust to be the minimum safe clearance, if it was properly checked to begin with, and you have very good valvetrain control.

01-01-2017, 02:15 PM	#5
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,105 Likes: 1,564 Liked 1,789 Times in 408 Posts	Re: LT 1 350 valve to piston clearance No, it is not legal to cut the valve reliefs on pistons in NHRA Stock Eliminator. I would probably consider 0.060" piston to valve clearance on the exhaust to be the minimum safe clearance, if it was properly checked to begin with, and you have very good valvetrain control. __________________ Alan Roehrich 212A G/S