my neibor ask me if i wanted to buy a 454ls6 in his garage that has been there for 15 years and never had oil in it.I went and looked at it it looked like a normal big block crate motor to me.what i could see of the casting numbers was 1006 couldnt make out the last few it does say hi-perf and it has sqaure port heads.he said it was a g.m perm ls6 454 450hp bought in the late 80;s early 90's.its hard for me to beleive that it came with a painted black intake even though it looks to be alum.can sombody help me i dont want a dog motor already have enough of these.he is 71 yrs old and seems honest.also the valve covers dont have any kind of sticker on them.what should i be looking for i called gm they cant help abit they say..