Hybrid EG: Nothing has to be drilled for the oil lines you only need a series of npt plugs. The dowel pins have to be enlarged on the head and the vtec oil feed hole has to be tapped and plugged. I had Charley at CMR turbo do mine and he only charged me twenty dollars and was done in an hour. Depending on what ecu you are planning to use you may or may not need to tap the back of the block for a knock sensor. And for the pistons what type are you running? If they are ITR pistons they will have to be balanced b/c in order for them to fit the ls rods they will have to be shaved so the small end of the ls rod will fit the piston. I built my lsvtec myself and it is running very well so if you have any questions feel free to ask via pm or email. And if you get someone to build it for you Colin does very good work.

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P.B.Y.M.