Briggs raptor camshaft rubbing?

#1
I just put in a precision cams .365 lift cam in my motor and I notice a slight rubbing on the intake stroke. It's not hitting the crankshaft or rod, I think it's rubbing against the block. How do I fix this? The engine still runs with it rubbing and doesn't make any noise. I also notice that the cam seems to wobble a little when installed. Thank in advance for any help.
 
#2
i highly suggest you go back into your engine and modify the lifter bores.thats too much lift for a stock block. you'll need to raise the bottom of the lifter bores,and chamfer them so that you have at least .030 clearance with the cam at full lift,between the lifter and the block.

pm me for more details.
 
#9
I'm sorry that was a poor choice in my wording. I meant to say that it fits loosely inside of the block. After messing around with it I found the problem to be the the lifter on the intake side was being lifted too high into the lifter bore. I had to raise the lifter bores and re chamfer them.
 
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