[Stan Weiss]

Originally Posted by Shockwave78

I just finished rebuilding my w72 400 with a Crower 60240 cam, new lifters, valve springs, rings, and rod bearings, I didn't have any work done at a machine shop as the engine didn't need anything. After break-in, I took the car for a drive and it makes less power than with the stock cam, it can't get out of its own way! I have checked compression, firing order, spark, fuel, and timing and all seems to be as it should be. Compression was at 145-150psi for cylinders 1, 2, 3, and 4. I will be checking the other 4 cylinders after work today, as I just did a quick check on the easily accessible cylinders. Timing is set to 18 degrees btdc. I'm out of ideas as to what could be amiss. A friend of mine suggested that the issue could be the stock non-adjustable valvetrain preventing the valves from operating properly. I did a rough check on the valve lift with a valve cover off cranking the engine and measuring valve movement and came up with ~1/2", which is close to the advertised lift of .422/.446 with the stock rocker arm ratio. It doesn't look like the rockers are binding or otherwise hanging up.

Any help would be greatly appreciated!

Do you know what you CR is?

Did you degree the cam? If so what is the ICL?

Stan