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N52 vs N52k cylinder head
I have been looking at used low mile cylinder heads since no matter what I try I cannot get rid of the lifter tick. I have tried additives, 0w30 oil(different brand synthetics), long drives more often and also swapped out the lifters(HVA’s) with what bmw recommended in the service bulletin. Nothing has worked. So I found that part number 11127591617 is the revised head bmw was using to replace the 2006-2008 heads. I also found in the service bulletin 2 different cast numbers on the revised heads. Cast number 7588273.01 for the N52 and 7588271.01 for the N52k. My question is what is the difference? The part number is the same but there is 2 different cast numbers being printed on the cylinder heads. I’m guessing there not interchangeable obviously. Just curious what the difference in the cylinder heads would be. Thanks guys for any help.
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