2009 NHRA Rules

Bub Whitaker · 12-12-2008, 03:34 PM

You can't angle mill a head enough to change the valve angle more than a degree or should I say, you can but the head wouldn't be useable... what they don't want you doin is reboreing the guides to change the angle

Dave Goob Cook · 12-13-2008, 11:56 AM

Quote:

Originally Posted by Bub Whitaker

You can't angle mill a head enough to change the valve angle more than a degree or should I say, you can but the head wouldn't be useable... what they don't want you doin is reboreing the guides to change the angle

Umm, my Pontiac 867 heads are angle milled to 20.5 degrees.....while maintaining the chamber cc's

Woodro Josey · 12-13-2008, 01:24 PM

Bub, you are right on again,,,,,,,i vote for you as Tech Director!!!!!! lol

12-12-2008, 03:34 PM	#1
Bub Whitaker Member Join Date: Feb 2005 Location: Dayton, MD Posts: 222 Likes: 0 Liked 1 Time in 1 Post	Re: 2009 NHRA Rules You can't angle mill a head enough to change the valve angle more than a degree or should I say, you can but the head wouldn't be useable... what they don't want you doin is reboreing the guides to change the angle

12-13-2008, 01:24 PM	#3
Woodro Josey Senior Member Join Date: Jul 2007 Posts: 805 Likes: 0 Liked 3 Times in 1 Post	Re: 2009 NHRA Rules Bub, you are right on again,,,,,,,i vote for you as Tech Director!!!!!! lol __________________ Woodro Josey 2002 STK

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