hi I have cvh rs turbo engine EFI I was going to use but changed mind . I put this to together with the parts I had .all bolts are finger tight. the bottom end I never messed with. turbo has bit play but comes with build kit head is big valve I have been told . only comes with what you see in pics and only one rocker cover never heard it running but was told it was ok good for some one who wants to do full rebuild thanks ENGINE BOTTOM END AND ROCKER COVER SOLD