Replacing Head Gaskets
I'm getting the heads cleaned, inspected, milled. While they are at the machine shop I'm having them put LT4 springs, reatainers, etc. on. As far as cleaning the block surface, what should I use? What should I use to get debri out of the lifter valley and cylinders (vacuum , rag)?
One last thing, does anyone have the part numbers for the oil pressure sender that bolts into the back of the block. I think I might of messed it up while trying to get a wrench back there to get the coolant crossover tube undone.
-Jon

