Thread: What can I expect? (New 454)

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EOS is engine oil supplement....use it every time you fire up a new engine. You have to get it from a GM dealer, they have it in stock. Yes, definitely pre-lube for several minutes with the drill and adapter. Then, cross your fingers and fire it up!! Keep the rpms up at 1500 to 2400 or so, varying it up and down several times. Are you doing this in the car, or is the engine on a stand? Make sure the cooling system is up to par...the engine will run hot, what with the higher rpms and not moving at all. I ususally put at least one box fan in front of the radiator, this helps. Watch the temp, if it creeps up too high, shut it down. They say 20 minutes for the break-in....I have seen everything from no break-in (my friend does this, and gets away with it...he buys the cheapest cams and parts, and never has a problem!!!) to 30 minutes or so. If you get a full 15 or 20 minutes, that should be fine. It doesnt have to be all at once either. If you have to shut down, it wont hurt anything. The gas question will likely bring lots of responses, but I can tell you that I have used gas that has been sitting in the tank for a few years, and it still starts and runs OK...I dont recommend doing it on a regular basis, but if it's in the tank now, I would definitely use it. Dont know how much capacity the tranny will be...but I'll see if I can find out. Good luck!!! John

First off the gas question ,It will take you 10 minutes,and 10 dollars to put fresh fuel in the system.Then you know you dont have to worry about that.Bad fuel,new engine ,not a good Idea.I would not do it.Also double check about the RPM's ,If I remember correctly the reason the engine needs to stay at 2200 rpm or a little more is because thats what it takes to keep the engine oil splashing inside the engine in all the right places.Its been a while since I have done this,but the crank does'nt splash oil up to the cam until a certain rpm.