We all know the only issue for m60b44 builds is the fact that you need to make your own lower-to-upper timing cover gaskets. Other then that, it's 100% bolt together.
I bolted my m60 heads to my m62 block last night, and noticed something else. The m62 block has an oil passage that feeds the big timing chain U-guide for lubrication. The guide uses a small bushing with a pin hole to limit flow, as the oil passage hole is big (a bit over 3/16"). With the m60 timing chain setup, the U-guide is eliminated, and a sprocket takes it's place. The hole in the block is left uncovered. This is a passage directly connected to the oil pumps output. This is obviously a problem, I'm surprised that the few m60b44's out there running currently aren't having oil pressure issues.
I'm having a friend make a tapered brass plug that I'll pound in there to seal this up.
Part number 8 and 9 in the below diagram is the bushing:
I bolted my m60 heads to my m62 block last night, and noticed something else. The m62 block has an oil passage that feeds the big timing chain U-guide for lubrication. The guide uses a small bushing with a pin hole to limit flow, as the oil passage hole is big (a bit over 3/16"). With the m60 timing chain setup, the U-guide is eliminated, and a sprocket takes it's place. The hole in the block is left uncovered. This is a passage directly connected to the oil pumps output. This is obviously a problem, I'm surprised that the few m60b44's out there running currently aren't having oil pressure issues.
I'm having a friend make a tapered brass plug that I'll pound in there to seal this up.
Part number 8 and 9 in the below diagram is the bushing:
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