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Jim Brierley · 09-23-2023, 11:09 AM

There were 3 Model B cams produced, the most common one had .302" of lobe lift. The best one had .339" but these are more rare. The Burtz cam is a little more radical, more lift and duration, and does put the power curve at a little higher RPM.

Original A/B cams are not case hardened, they are just made from really good steel, so re-grinding them does not change its hardness.

09-23-2023, 11:09 AM	#9
Jim Brierley Senior Member Join Date: Jun 2010 Location: Temecula, CA Posts: 4,321	Re: A, B or "touring" cam? There were 3 Model B cams produced, the most common one had .302" of lobe lift. The best one had .339" but these are more rare. The Burtz cam is a little more radical, more lift and duration, and does put the power curve at a little higher RPM. Original A/B cams are not case hardened, they are just made from really good steel, so re-grinding them does not change its hardness.