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Just pulled the camshaft out of the 454 and we are trying to get the specs off of it. When we bought the rebuilt 454 we were told that it had a comp cam with .530 lift in it. One problem....The part number IS NOT a comp cams to our knowledge. The part number is E10661 and I have searched everywhere and so far it is not a part number for Comp Cams, Edelbrock, and Crane Cams. There was another stamp that was overlapping...that was Z025.Any help would be greatly appreciated and it is for the sake of the Nova. We are tring to get it in tip top shape for CAR CRAFT!!!!!!!!!
 

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I know this doesn't help but Z-25 is an Isky small block solid lifter grind number and the E10661 doesn't match. Closest Big block is a Z-33. It may be a custom Isky or something completely different.
 
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