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63corvette · 03-18-2016, 05:59 PM

In my experience it is more like .002 to .003 on the valves.
Not sure on the piston clearance. If it is a alum rod it will be different than a steel rod.
Just My 2 Cents
Rick Cates

03-18-2016, 05:59 PM	#2
63corvette Senior Member Join Date: Mar 2007 Location: Canyon, Tx Posts: 552 Likes: 128 Liked 359 Times in 103 Posts	Re: Iron BBC w/ aluminum head growth In my experience it is more like .002 to .003 on the valves. Not sure on the piston clearance. If it is a alum rod it will be different than a steel rod. Just My 2 Cents Rick Cates